Let $B={{x^2, x, 1}}$ and $S= {{x^2+x, 2x-1, x+1}}$ be two basis of $P_2$.











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Let $B={{x^2, x, 1}}$ and $S= {{x^2+x, 2x-1, x+1}}$ be two basis of $P_2$. Let $i_b$ and $i_s$ be the coordinates maps induced on $P_2$ by these two basis. Let$T: P_2to P_2$ be a liner transformation such that



$[T]_{B,S}$=$begin{bmatrix}1 & 2 &0 \-1&3&5\2 & 2&-2 end{bmatrix}$



a) Prove that $ker(T)$=$i_b^{-1}(Null([T]_{B,S}))$ and $i_s(Im(T))=Col([T])_{B,S})$.



I know that $[T(x)]_B=[T]_{B,S}[x]_B$



but what is $i_B$ and what is its $Im$??



I am stuck with finding the $ker(T)$, I would be appreciate if someone can walk me through this problem.










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  • Im(T) is the image or Range of the transformation.And i think for Ker(T) you just need to solve $[T]_{B,S}.bar x=bar 0$.
    – emonhossain
    2 days ago












  • @emonhossain is it the same as $Null([T]_{B,S})$ ?
    – Anqi Luo
    2 days ago















up vote
0
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Let $B={{x^2, x, 1}}$ and $S= {{x^2+x, 2x-1, x+1}}$ be two basis of $P_2$. Let $i_b$ and $i_s$ be the coordinates maps induced on $P_2$ by these two basis. Let$T: P_2to P_2$ be a liner transformation such that



$[T]_{B,S}$=$begin{bmatrix}1 & 2 &0 \-1&3&5\2 & 2&-2 end{bmatrix}$



a) Prove that $ker(T)$=$i_b^{-1}(Null([T]_{B,S}))$ and $i_s(Im(T))=Col([T])_{B,S})$.



I know that $[T(x)]_B=[T]_{B,S}[x]_B$



but what is $i_B$ and what is its $Im$??



I am stuck with finding the $ker(T)$, I would be appreciate if someone can walk me through this problem.










share|cite|improve this question
























  • Im(T) is the image or Range of the transformation.And i think for Ker(T) you just need to solve $[T]_{B,S}.bar x=bar 0$.
    – emonhossain
    2 days ago












  • @emonhossain is it the same as $Null([T]_{B,S})$ ?
    – Anqi Luo
    2 days ago













up vote
0
down vote

favorite









up vote
0
down vote

favorite











Let $B={{x^2, x, 1}}$ and $S= {{x^2+x, 2x-1, x+1}}$ be two basis of $P_2$. Let $i_b$ and $i_s$ be the coordinates maps induced on $P_2$ by these two basis. Let$T: P_2to P_2$ be a liner transformation such that



$[T]_{B,S}$=$begin{bmatrix}1 & 2 &0 \-1&3&5\2 & 2&-2 end{bmatrix}$



a) Prove that $ker(T)$=$i_b^{-1}(Null([T]_{B,S}))$ and $i_s(Im(T))=Col([T])_{B,S})$.



I know that $[T(x)]_B=[T]_{B,S}[x]_B$



but what is $i_B$ and what is its $Im$??



I am stuck with finding the $ker(T)$, I would be appreciate if someone can walk me through this problem.










share|cite|improve this question















Let $B={{x^2, x, 1}}$ and $S= {{x^2+x, 2x-1, x+1}}$ be two basis of $P_2$. Let $i_b$ and $i_s$ be the coordinates maps induced on $P_2$ by these two basis. Let$T: P_2to P_2$ be a liner transformation such that



$[T]_{B,S}$=$begin{bmatrix}1 & 2 &0 \-1&3&5\2 & 2&-2 end{bmatrix}$



a) Prove that $ker(T)$=$i_b^{-1}(Null([T]_{B,S}))$ and $i_s(Im(T))=Col([T])_{B,S})$.



I know that $[T(x)]_B=[T]_{B,S}[x]_B$



but what is $i_B$ and what is its $Im$??



I am stuck with finding the $ker(T)$, I would be appreciate if someone can walk me through this problem.







linear-algebra linear-transformations change-of-basis invariant-subspace






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edited 2 days ago

























asked 2 days ago









Anqi Luo

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  • Im(T) is the image or Range of the transformation.And i think for Ker(T) you just need to solve $[T]_{B,S}.bar x=bar 0$.
    – emonhossain
    2 days ago












  • @emonhossain is it the same as $Null([T]_{B,S})$ ?
    – Anqi Luo
    2 days ago


















  • Im(T) is the image or Range of the transformation.And i think for Ker(T) you just need to solve $[T]_{B,S}.bar x=bar 0$.
    – emonhossain
    2 days ago












  • @emonhossain is it the same as $Null([T]_{B,S})$ ?
    – Anqi Luo
    2 days ago
















Im(T) is the image or Range of the transformation.And i think for Ker(T) you just need to solve $[T]_{B,S}.bar x=bar 0$.
– emonhossain
2 days ago






Im(T) is the image or Range of the transformation.And i think for Ker(T) you just need to solve $[T]_{B,S}.bar x=bar 0$.
– emonhossain
2 days ago














@emonhossain is it the same as $Null([T]_{B,S})$ ?
– Anqi Luo
2 days ago




@emonhossain is it the same as $Null([T]_{B,S})$ ?
– Anqi Luo
2 days ago















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