Published by:
CGP EDU Academic Team
Published on: August 12, 2026
Compute A − 1, if A = 
. Hence solve the matrix equations 
.
Text Solution
Verified by ExpertsThe correct answer is:
A
x = 1, y = 2, z = 3, A –1 = 
Sol. A = 
Adj.A = 
⇒ |A| = –17 ⇒ A –1 = 
A –1 = 
⇒ 
= 
⇒ 3x + 3z = 8 + 2y ⇒ 2x + y = 1 + z ⇒ 4x + 2z = 4 + 3y
By Solving x = 1, y = 2 & z = 3
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