Question: In each part, find a single matrix that performs the indicated succession of operations: (a) Compresses by a factor of 1/2 in the x-direction, then

In each part, find a single matrix that performs the indicated succession of operations:
(a) Compresses by a factor of 1/2 in the x-direction, then expands by a factor of 5 in the y-direction
(b) Reflects about y = x, then rotates through an angle of 180° about the origin

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