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Consider the following matrices. What is the corresponding transfrmation on polynomials? Indicate the domain P_i and the codomain p_j

The matrix is: [1,1;1,-1]

I looked at the sol. manual and it states

T(ax+b)=(a+b)x+(a-b)

I seriously have no idea how they came up with that. I read the section and i don't see any examples on how to do it.

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# Homework Help: Arr Lin. algebra problem (frustrating)

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