The columns of matrix T show the coordinates of the vertices of a triangle. Matrix A is

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The columns of matrix T show the coordinates of the vertices of a triangle. Matrix A is a transformation matrix.
0. T = 2 4

(a) Find AT and AAT. Then sketch the original triangle and the two images of the triangle. What transformation does A represent?
(b) Given the triangle determined by AAT, describe the transformation that produces the triangle determined by AT and then the triangle determined by T.

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