3 -1 51 14 3 13], 8 - [- B = [-14 -¯3 ] 5 is the inverse of A, we nee 15+ C C 3-1 5 -14 -1 3][₁ 51 5 14 3 = 42 + 15 + -70 +

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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Show that B is the inverse of A.
= [₁53], B = [₁
A =
AB =
- [124 3 ][ - 23
-14
To show that B is the inverse of A, we need to show that AB = I = BA.
15+
-5 +
-14 +
BA =
3
-14
-3].
=
5
3 -1
5
[][]
14
5
14 3
3]
=
42 +
15+
-70 +
3+
-14 +
=
=
Transcribed Image Text:Show that B is the inverse of A. = [₁53], B = [₁ A = AB = - [124 3 ][ - 23 -14 To show that B is the inverse of A, we need to show that AB = I = BA. 15+ -5 + -14 + BA = 3 -14 -3]. = 5 3 -1 5 [][] 14 5 14 3 3] = 42 + 15+ -70 + 3+ -14 + = =
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