Q11: a b c Let de 9 ● a d f = 7, find the determinants hi b C e f 3g 3h 3i a+d be c+f d f 9 Compute e h 1-3 1 -2 2 -5 -1 -2 0-4 5 1 -3 10 -6 8 in as few steps as possible. Let A be an n x n matrix such that A² = I. Show that det A = ±1.
Q11: a b c Let de 9 ● a d f = 7, find the determinants hi b C e f 3g 3h 3i a+d be c+f d f 9 Compute e h 1-3 1 -2 2 -5 -1 -2 0-4 5 1 -3 10 -6 8 in as few steps as possible. Let A be an n x n matrix such that A² = I. Show that det A = ±1.
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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