Published by:
CGP EDU Academic Team
Published on: August 12, 2026
If A = 
, A –1 = 
, then find values of a & c.
Text Solution
Verified by ExpertsThe correct answer is:
A
a = 1, c = – 1
Sol. A = 
A –1 = 
AA –1 = Ι ⇒ 
= Ι ⇒ 
⇒ = Ι
∴ 2c + 2 = 0, 8 – 8a = 0 ⇒ c = – 1, a = 1
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