Find A-1 where AB=C and C2 C3 b, b, bz C1 B= b, b, b, & C= C1 C2 C3) а, а, аз

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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Find A- where AB=C and
а, а, аз
b, b, b,
C2 C3
b, b, b3
1
C1
B=
& C=
1
C1 C2 C3
|a1 a2 az
Transcribed Image Text:Find A- where AB=C and а, а, аз b, b, b, C2 C3 b, b, b3 1 C1 B= & C= 1 C1 C2 C3 |a1 a2 az
Expert Solution
Step 1

Given matrix is B=a1a2a3b1b2b3c1c2c3 and C=c1c2c3b1b2b3a1a2a3.

We have to find the A-1 where AB=C.

Given AB=C

Then A1=CB-1.

If we interchange the first row with third row of the matrix C=c1c2c3b1b2b3a1a2a3, we get

C=a1a2a3b1b2b3c1c2c3=-B

Hence, C=B

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