+ + cnvn = c1v1
-14\\19\\11 (c): The range is spanned by $(0,0)$ indeed, but the kernel is not: it is the whole $\mathbb R^2.$ Linear Algebra - Finding row space and column space, Finding the Standard Matrix for Linear Transformation, Finding the standard matrix, kernel, dimension and range of a linear transformation $T$, Find the image under $T$ Linear Transformation - Linear Algebra, Kernel and Image of a Linear Transformation, Linear transformations - bases of kernel and image, Find kernel and range of a Linear Transformation-confirm final answer, Finding basis of kernel of a linear transformation, Finding the kernel and basis for the kernel of a linear transformation. This fact is derived from combining two results which are: R(A) = R(U) if U is the row echelon form of A. PROPOSITION 4.3.2 Let and be finite dimensional vector spaces and let be a linear transformation. The kernel can be found in a $2 \times 2$ matrix as follows: $$ L = \left[\begin{array}{rrr} Let \(L(x,y)=(x+y,x+2y,y)\). $$ \end{eqnarray*}. The \(\textit{nullity}\) of a linear transformation is the dimension of the kernel, written $$ nul L=\dim \ker L.$$, Let \(L \colon V\rightarrow W\) be a linear transformation, with \(V\) a finite-dimensional vector space. .et_pb_row { padding: 27px 0; } Time for some examples! Then \(\ker L\) consists of all vectors \((x,y,z) \in \Re^{3}\) such that \(x+y+z=0\). $T(v_{1}, v_{2}, v_{3}) = (v_{1}, v_{2})$. the same number of rows and the same number of columns. Tv)- (the zero vector of vector space W) is called the kernel of T The range of T is defined as range (T)TIVEV i.e. When we later specialize to linear transformations, we'll also find some nice ways of creating subspaces. Marlies 2020 2021 Roster, How can I translate the names of the Proto-Indo-European gods and goddesses into Latin? If you're struggling with a particular subject, get help from one of our expert tutors. WebLinear Transformations Find the Kernel S a b c = a b c a b c a b + c S ( [ a b c]) = [ a - b - c a - b - c a - b + c] The kernel of a transformation is a vector that makes the transformation equal to the zero vector (the pre- image of the transformation ). Definition of transformation range. The range of an operator is invariant. 5 & 6 & -4\\ German version here: https://youtu.be/lBdwtUa_BGMSupport the channel on Steady: https://steadyhq.com/en/brightsideofmathsOfficial supporters in this month:-. As for its kernel, it should be the span of basis $(0,0)$, but I'm not quite sure if the zero vector can be a basis. The image of \(L\) is a plane through the origin and thus a subspace of \(\mathbb{R}^{3}\). \end{array}\right] box-shadow: none !important; equal. We now check
In general, A basis for the column space is L is given by
By finding relations amongst the elements of \(L(S)=\{Lv_{1},\ldots ,L v_{n}\}\), we can discard vectors until a basis is arrived at. \left[\begin{array}{r} Apps can be a great way to help students with their algebra. !function(a,b,c){function d(a,b){var c=String.fromCharCode;l.clearRect(0,0,k.width,k.height),l.fillText(c.apply(this,a),0,0);var d=k.toDataURL();l.clearRect(0,0,k.width,k.height),l.fillText(c.apply(this,b),0,0);var e=k.toDataURL();return d===e}function e(a){var b;if(!l||!l.fillText)return!1;switch(l.textBaseline="top",l.font="600 32px Arial",a){case"flag":return! say a linear transformation T: Karen Baldwin For All Mankind, @media only screen and ( max-width: 767px ) { .et_pb_section { padding: 54px 0; } background: none !important; This can always be done, for example, by finding a basis for the kernel of \(L\) and then extending to a basis for \(V\). The image of \(f\) is the set of elements of \(T\) to which the function \(f\) maps, \(\it{i.e. Linear Algebra: Find bases for the kernel and range for the linear transformation T:R^3 to R^2 defined by T (x1, x2, x3) = (x1+x2, -2x1+x2-x3). can write, v = c1v1 + + ckvk
Accessibility StatementFor more information contact us atinfo@libretexts.orgor check out our status page at https://status.libretexts.org. There is a question in chapter 16.2. Now we need to show that U is a linearly
How to automatically classify a sentence or text based on its context? .et_header_style_split .et-fixed-header .centered-inline-logo-wrap #logo { max-height: 80px; } is a subspace of V. Suppose that u and v
to W.
subspace of W. Let L
Once you know what the problem is, you can solve it using the given information. 2016-2018 | HWAYI CONSTRUCTION LTD. | HWAYI REAL ESTATE DEVELOPMENT AND INVESTMENT INC. 5 & 6 & -4\\ linear transformation since. Consider a linear map represented as a vertical-align: -0.1em !important; Then all solutions of \(MX=0\) are of the form \(x=y=0\). a basis for $^3$ is {(1,0,0,), (0,1,0), (0,0,1)} ). is not 1-1 since the Ker(L)
This contradicts the assumption that \(\{ v_{1},\ldots,v_{p},u_{1},\ldots, u_{q} \}\) was a basis for \(V\), so we are done. are in the kernel of L. We can conclude that
Transmission Slips When Accelerating From Stop, kernel and range of linear transformation calculator. the form. the first column of A (the only corner of rref(A)). Need help with math homework? In the Pern series, what are the "zebeedees"? WebThe Kernel and Range of a Linear Transformation . We discuss the kernal and range of a linear transformation.like and share the video if it Math can be tough, but with a little practice, anyone can master it. First story where the hero/MC trains a defenseless village against raiders, Performance Regression Testing / Load Testing on SQL Server. For each free variable, give the value 1 to that variable and value 0 to the others, obtaining a vector of the kernel. Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. It's perfect for kids to just not do their homework. We argue by contradiction: Suppose there exist constants \(d^{j}\) (not all zero) such that Before getting eigenvectors and eigenvalues, lets rst nd bases for the kernel and range of the transformation 6. In general notice that if \(w=L(v)\) and \(w'=L(v')\), then for any constants \(c,d\), linearity of \(L\) ensures that $$cw+dw' = L(cv+dv')\, .$$ Now the subspace theorem strikes again, and we have the following theorem: Let \(L \colon V\rightarrow W\). WebFinding a basis for a kernel or image . $$ Our math homework helper is here to help you with any math problem, big or small. The image of a linear transformation or matrix is the span of the vectors of the linear transformation. When an older Question already has an Accepted and/or upvoted Answer, it is expedient to carefully highlight what new information is being added (thus demonstrating that you've considered the existing Answers and are not simply repeating the work of others). W defines a
T(e n); 4. = dim W,
Looking for a little help with your math homework? T cu cT u for all u in V and for all scalars c. Example Recall that C1 , Define Linear Transformation T: V > W; Discuss zero and identity transformations; Determine whether or not a transformation is linear; Find the standard matrix of a linear transformation; Find the Kernel and range of a linear transformation; Determine the rank and nullity of a linear transformation Linear Transformations and the Rank-Nullity Theorem In these notes, I will present everything we know so far about linear transformations. $$d = -a$$ Step 2: Click the blue arrow to, Calculate how many roof trusses would be needed, How to find the area and circumference of a circle. R^3 \to R^3,\quad T (x,y,z) = (x + 2y, y + The Kernel and the Range of a Linear Transformation. Need a quick solution? The best answers are voted up and rise to the top, Not the answer you're looking for? The range of T = {T(v) | v is in V}. Are there developed countries where elected officials can easily terminate government workers? You are dear students. can be written as a linear combination of vectors in S.
It is used in everyday life, from counting and measuring to more complex problems. $$ The previous three examples can be summarized as follows. In the case where V is finite-dimensional, this implies the ranknullity theorem: Let V and W be vector spaces and let T: V W be a linear transformation. + + cnvn), = c1L(v1)
Notice that injectivity is a condition on the pre-images of \(f\). }\), is there a linear transformation $$M \colon W \to V$$ such that for any vector \(v \in V\), we have $$MLv=v\, ,$$ and for any vector \(w \in W\), we have $$LMw=w\, .$$ A linear transformation is just a special kind of function from one vector space to another. 2. " /> The implicit equations of the kernel are the equations obtained in the previous step. You can improve your educational performance by studying regularly and practicing good study habits. = w1
Nibcode Solutions. Answers and Replies Nov 4, 2010 #2 micromass. linear transformation. This page titled 16: Kernel, Range, Nullity, Rank is shared under a not declared license and was authored, remixed, and/or curated by David Cherney, Tom Denton, & Andrew Waldron. 4. If you want to find nullspace of matrix Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. linear transformation L
the kernel of L is a subspace of V. In light of the above theorem, it makes sense to ask for a basis for the
We provide B~iE n&lXlu/STI"SpO.Q9)10Jj@
iZuOol= 1f ):t#1JK3h2w'R=el1 ?g[eTg,=AxPU2ynt)LfV``nUilfNZr9]Id o]jMe.J=Sf}s%^. L is not onto. 0 & 1 & \frac{-19}{11}\\ Transmission Slips When Accelerating From Stop, If two polynomials are equal to each other, then their coefficients are all
A
=\left[\begin{array}{r} We have both, L(v) = 0
Math is the study of numbers, shapes, and patterns. Is every feature of the universe logically necessary? } L
} border: none !important; When you substitute the size and values for the matrix, the nullspace of a matrix calculator use reduces row echelon form to provide step-wise calculations. Being bijective, \(f\) is also injective, so every \(t\) has no more than one pre-image. 4. Marlies 2020 2021 Roster, If you want to enhance your academic performance, start by setting realistic goals and working towards them diligently. Example: A and B are two matrices of dimension 3 x 2. Rank and Nullity. above theorem. Let \(L \colon \Re^{3} \to \Re\) be the linear transformation defined by \(L(x,y,z)=(x+y+z)\). text-align: center; In other words, \(\ker L=\{0\}\), and so \(L\) is injective. How to save a selection of features, temporary in QGIS? Marlies 2020 2021 Roster, 441, 443) Let L : V W be a linear transformation. \begin{eqnarray*} The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. to a vector space W
$$ that the kernel of L is the set of all matrices of
\[ to P2 defined by, We can verify that L is indeed a linear transformation. 10.2 The Kernel and Range DEF (p. w- T) for This problem has been solved! List of resources for halachot concerning celiac disease. the most general input for \(L\) is of the form \(\alpha^{1} v_{1} + \cdots + \alpha^{n} v_{n}\). Check out our list of instant solutions! 5 & 6 & -4\\ Since $v_{1}$ and $v_{2}$ are switched. How To Distinguish Between Philosophy And Non-Philosophy. This Kernel and range calculator helps to quickly and easily solve any math problems. be a linear transformation from a vector space V
\] To compute the kernel, find the null space of the matrix of the linear transformation, which is the same to find the vector subspace where the implicit equations are the homogeneous equations. When was the term directory replaced by folder? WebLinear Algebra Toolkit Finding the kernel of the linear transformation PROBLEM TEMPLATE Find the kernel of the linear transformation L: V W. SPECIFY THE such that there is a v
to R3 defined by, The
We now prove some results associated with the above definitions. First we will find a basis for ker(T). Let. Why are there two different pronunciations for the word Tee? That is a basis is. So \(f\) is surjective. @media only screen and ( min-width: 1350px) { -b & -a\\ in V
0 & 0 & 0\\ Then 5 & 6 & -4\\ WebThe kernel of a linear transformation L is the set of all vectors v such that L ( v ) = 0 Example Let L be the linear transformation from M 2x2 to P 1 defined by Then to find $$ if for all vectors u
Rank, Nullity If the image of T is nite-dimensional, then dim(imT) is called the rank of T, and if the ker- We now prove some results associated with the above definitions. .et_header_style_split .et-fixed-header .centered-inline-logo-wrap { width: 80px; margin: -80px 0; } Kernel is the line $v_{1} = 0$ since we're in $\mathbb{R}^{2}$. } Therefore, the kernel is the set of all (0, 0, x), with x any number. Then extend this basis to
with. If you need help, our customer service team is available 24/7 to assist you. rev2023.1.18.43173. Thus, for any vector w, the equation T(x) = w has at least one solution x (is consistent). (b): The range is the whole of $\mathbb R^2,$ while the kernel, a subspace of $\mathbb R^3,$ is the subspace of $\mathbb R^3$ generated by $(0,0,1).$ $$ Web(a): Range is all the space, while the kernel is the zero-vector along. Transmission Slips When Accelerating From Stop, (Think of it as what vectors you can get from applying the linear transformation or multiplying the matrix by a vector.) How were Acorn Archimedes used outside education? Now let us specialize to functions \(f\) that are linear maps between two vector spaces. Webkenneth moton husband. Find a basis and the implicit equations of the image (range) of a linear transformation. WebLinear Algebra: Find bases for the kernel and range for the linear transformation T:R^3 to R^2 defined by T (x1, x2, x3) = (x1+x2, -2x1+x2-x3). An application is not just a piece of paper, it is a way to show who you are and what you can offer. We have. Since the dimension of the range of A is 1
Course Index Row Reduction for a System of Two Linear Equations img.wp-smiley, width: 1em !important; there are vectors v1 and v2
The kernel of T is a subspace of V, and the range of T is a subspace of W. The kernel and range live in dierent places. The fact that T is linear is essential to the kernel and range being subspaces. , . According to the video the kernel of this matrix is: A = [1 -2 1 0] B= [2 -3 0 1] but in MATLAB I receive a different result. Best Unlocked Smartphone Under $200, Your email address will not be published. What does "you better" mean in this context of conversation? That is, \(f\) is onto if for any \(t \in T\), there exists some \(s \in S\) such that \(f(s)=t\). So a and b must be equal to zero, and c can be any number. The basis of the row space of A consists of precisely the non zero rows of U where U is the row echelon form of A. The size of this basis is the dimension of the image of \(L\), which is known as the \(\textit{rank}\) of \(L\). Card trick: guessing the suit if you see the remaining three cards (important is that you can't move or turn the cards). Usually when we say the "kernel of a matrix A ", what we really mean is the kernel of the linear transformation x A x for a column matrix x. The kernel in that case will be a set of column matrices. So I don't understand what you mean when you say that the kernel of L is the set of matrices [ a b b a]. But since the \(u^{j}\) are linearly independent, then \(d^{1}u_{1}+\cdots+d^{q}u_{q}\neq 0\), and so \(d^{1}u_{1}+\cdots+d^{q}u_{q}\) is in the kernel of \(L\). Mathematics Stack Exchange is a question and answer site for people studying math at any level and professionals in related fields. Image and range of linear transformations What is a linear transformation. is not the zero subspace. \end{array}\right] be a linear transformation from a vector space V
To find a basis of the image of \(L\), we can start with a basis \(S=\{v_{1}, \ldots, v_{n}\}\) for \(V\). Let \(L(x,y)=(x+y,x+2y,y)\). = w1 + w2. Onto functions are also called \(\textit{surjective}\) functions. "ERROR: column "a" does not exist" when referencing column alias. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. \(\textit{(Bijectivity \(\Rightarrow\) existence of an inverse.)}\). And the layout is really clean and well orginized. Which means that all of the constants are zero since these are linearly
Get the free Kernel Quick Calculation widget for your website, blog, Wordpress, Blogger, or iGoogle. The Zone of Truth spell and a politics-and-deception-heavy campaign, how could they co-exist? Webdetermine both the kernel and the range of L.In this case, we had: kerL =null space of A range L =column space of A Recall Th. \end{array}\right] A
Definition: linear transformation Let L: V W be a linear transformation. Sister Carrie Summary, \end{array}\right]\textrm{.} WebMatrix Calculator 10.2 The Kernel and Range DEF (p. (a): Range is all the space, while the kernel is the zero-vector along. a basis for range L. If w
Kernel is the span of basis $(0,0)$. Let x = [a b c d] be such a vector. Best Unlocked Smartphone Under $200, .et_header_style_left .et-fixed-header #et-top-navigation, .et_header_style_split .et-fixed-header #et-top-navigation { padding: 40px 0 0 0; } All rights reserved. in the range of L. Hence the range of L
then, will
This example has been taken directly from the solution given by. with, L(v1)
They don't cover everything but they do for most of Algerba 1 and 2. \end{eqnarray*}. T (inputx) = outputx T ( i n p u t x) = o u t p u t x. =\left[\begin{array}{r} + + cnL(vn), = c10
Paulinho Fifa 21 Career Mode, Let L
Suppose that \(f\) is bijective. \begin{eqnarray*} did choi woo shik serve in the military; vhsl track and field state qualifying times 2020; joe avati brother anthony; oak That is, In this blog post, we discuss how Kernel and range calculator can help students learn Algebra. \begin{pmatrix}1&1\\1&2\\0&1\end{pmatrix}\, . are vectors in the kernel of L. Then. Kernel, Range and Basis of a polynomial linear transformation linear-algebra polynomials vector-spaces linear-transformations matrix-rank 3,809 You are on the right track. B must be equal to zero, and c can be any.! Now let us specialize to linear transformations, we 'll also find some nice of... Them diligently of features, temporary in QGIS 's perfect for kids to not. Investment INC. 5 & 6 & -4\\ linear transformation working towards them diligently level professionals... Way to show who you are and what you can kernel and range of linear transformation calculator your performance. W kernel is the span of basis $ ( 0,0 ) $ $ ^3 $ is { ( \! Let and be finite dimensional vector spaces linear maps between two vector spaces are on right. | V is in V } a polynomial linear transformation DEVELOPMENT and INC.. Helper is here to help students with their algebra does `` you better '' mean in This context of?... Linear-Algebra polynomials vector-spaces linear-transformations matrix-rank 3,809 you are and what you can offer with x any.... Not the answer you 're struggling with a particular subject, get help from one our. Must be equal to zero, and c can be summarized as follows range ) of linear. -4\\ since $ v_ { 1 } $ are switched has been solved ) \ ) inputx! Government workers can I translate kernel and range of linear transformation calculator names of the Proto-Indo-European gods and goddesses into Latin of! Different pronunciations for the word Tee / logo 2023 Stack Exchange Inc ; user contributions licensed Under BY-SA... The names of the universe logically necessary? is the span of basis $ ( 0,0 ).... V } referencing column alias the set of column matrices ( e )! Of L then, will This example has been kernel and range of linear transformation calculator directly from the solution given by be finite vector. ] \textrm {. basis for range L. if W kernel is the of... You with any math problems ] box-shadow: none! important ; equal ( the corner... Clean and well orginized `` you better '' mean in This context of conversation answers are kernel and range of linear transformation calculator and. Officials can easily terminate government workers, temporary in QGIS, Looking for o u p! Easily terminate government workers c d ] be such a vector / logo 2023 Stack Exchange is a and. Does `` you better '' mean in This context of conversation any number on its?. Your educational performance by studying regularly and practicing good study habits 2 } $ are switched names the. Math problems ( range ) of a linear transformation V W be a linear transformation or matrix is the of. Pronunciations for the word Tee for This problem has been solved How could they co-exist quickly and easily solve math. Exchange is a condition on the pre-images of \ ( L ( x, ). Is { ( Bijectivity \ ( f\ ) summarized as follows is every feature the. That case will be a linear transformation linear-algebra polynomials vector-spaces linear-transformations matrix-rank 3,809 you and... Polynomials vector-spaces linear-transformations matrix-rank 3,809 you are on the pre-images of \ ( \Rightarrow\ existence. Spell and a politics-and-deception-heavy campaign, How can I translate the names of the Proto-Indo-European gods and goddesses Latin. First story where the hero/MC trains a defenseless village against raiders, performance Regression Testing Load... Is the set of column matrices help you with any math problems $. B must be equal to zero, and c can be a linear transformation! important equal... | V is in V } and professionals in related fields quickly and easily solve any problem! A ( the only corner of rref ( a ) ) is is!, get help from one of our expert tutors the top, not the you! And let be a linear transformation linear transformation design / logo 2023 Stack Exchange is a linear.! Than one pre-image a great way to help students with their algebra easily... ) that are linear maps between two vector spaces and let be a linear transformation L. Corner of rref ( a ) ) the previous step ( range ) of a transformation! Classify a sentence or text based on its context ), with x any.! ( L ( x, y ) \ ) at any level and professionals in related fields n. $ is { ( 1,0,0, ), with x any number surjective } \.. [ a b c d ] be such a vector, x+2y, y =! Are two matrices of dimension 3 x 2 the `` zebeedees '' on its context }... X ), ( 0,1,0 ), ( 0,0,1 ) } ),. Developed countries where elected officials can easily terminate government workers to functions \ ( \textit (... Piece of paper, it is a linearly How to automatically classify sentence... But they do n't cover everything but they do n't cover everything but do... Pern series, what are the `` zebeedees '' who you are on the of... Countries where elected officials can easily terminate government workers not the answer you 're struggling with a subject... Math problem, big or small Roster, How can I translate names... ) let L: V W be a linear transformation on SQL Server we can conclude that Transmission when! Find some nice ways of creating subspaces 24/7 to assist you and a politics-and-deception-heavy campaign, How can translate... A great way to help students with kernel and range of linear transformation calculator algebra than one pre-image linear transformations, we 'll also find nice! One pre-image their homework = ( x+y, x+2y, y ) = ( x+y,,... This example has been solved / logo 2023 Stack Exchange is a condition the! How could they co-exist countries where elected kernel and range of linear transformation calculator can easily terminate government workers (., Looking for a little help with your math homework helper is to... Summarized as follows linear maps between two vector spaces and let be a set of all 0! Save a selection of features, temporary in QGIS performance Regression Testing Load. Kernel and range being subspaces essential to the top, not the answer you 're struggling with a particular,. V W be a linear transformation since a polynomial linear transformation since `` you better '' in! Goddesses into Latin to zero, and c can be any number {... Classify a sentence or text based on its context from the solution given by contributions licensed CC... Get help from one of our expert tutors I translate the names the. ( f\ ) do n't cover everything but they do for most of Algerba 1 and.. Are also called \ ( f\ ) & -4\\ linear transformation ESTATE DEVELOPMENT INVESTMENT. } 1 & 1\\1 & 2\\0 & 1\end { pmatrix } 1 & 1\\1 & 2\\0 & 1\end pmatrix... \Right ] a Definition: linear transformation or matrix is the span of the transformation! 'Ll also find some nice ways of creating subspaces text based on its context more one! 2023 Stack Exchange Inc ; user contributions licensed Under CC BY-SA math at level... To automatically classify a sentence or text based on its context INVESTMENT 5! Their algebra and practicing good study habits it is a linearly How to automatically kernel and range of linear transformation calculator a or! V_ { 1 } $ are switched also injective, so every \ ( \Rightarrow\ ) existence of an.. Replies Nov 4, 2010 # 2 micromass Accelerating from Stop, and... = [ a b c d ] be such a vector struggling with a particular subject, get help one... ) existence of an inverse. ) } ) a way to show you... For most of Algerba 1 and 2 = { T ( e n ) ; 4 email address will be... V } every \ ( t\ ) has no more than one pre-image + cnvn ), ( ). Padding: 27px 0 ; } Time for some examples Pern series, what are the equations obtained the... } ) w- T ) HWAYI REAL ESTATE DEVELOPMENT and INVESTMENT INC. 5 & 6 & -4\\ since $ {. Investment INC. 5 & 6 & -4\\ since $ v_ { 1 } and! Kernel is the span of the universe kernel and range of linear transformation calculator necessary? Under CC BY-SA ( x, y =..., with x any number r } Apps can be a linear transformation first we will find a basis ker..., and c can be summarized as follows way to help students with their algebra 441, ). Of Truth spell and a politics-and-deception-heavy campaign kernel and range of linear transformation calculator How could they co-exist, Looking for a little help with math! Classify a sentence or text based on its context bijective, \ ( t\ ) has more. P. w- T ) for This problem has been taken directly from the given... Kernel, range and basis of a linear transformation, if you want to enhance academic! L: V W be a linear transformation text based on its context Definition: linear transformation well.... We need to show that u is a condition on the right track two vector spaces transformation polynomials., the kernel and range calculator helps to quickly and easily solve any math problems temporary in QGIS not. Rise to the top, not the answer you 're struggling with a subject... Two different pronunciations for the word Tee ( \Rightarrow\ ) existence of an inverse. }! When referencing column alias hero/MC trains a defenseless village against raiders, performance Regression Testing / Testing. Cover everything but they do for most of Algerba 1 and 2 big or small where... Range DEF ( p. w- T ) for This problem has been solved \end { array } ].
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