Question: (a) Use Equation (3) and Exercises 39 and 40 to show that (b) Show that PS(T is nonsingular. (c) Verify the result in part (a)

(a) Use Equation (3) and Exercises 39 and 40 to show that
Ps-r = M' Mr.

(b) Show that PS(T is nonsingular.
(c) Verify the result in part (a) of Example 4.
Let S = [v1, v2, ( ( ( ( vn} and T = {w1, w2, ( ( ( ( wn} be ordered bases for the vector space Rn.

Ps-r = M' Mr.

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