Math 416 Homework 8. Solutions.

Math 416 Homework 8. Solutions. 1. (Freidberg, Insel, Spence 2.4.4). Let A;Bbe n ninvertible matrices. Show that AB is an n ninvertible matrix, and that (AB) 1 = B 1A 1. Solution: Let us assume that A;B are invertible, by which we mean there are matrices ................
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