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Q.

If A=[22−32],B=[0−110] then (B−1A−1)−1=

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a

[2−223]

b

[3−222]

c

110[22−23]

d

110[32−22]

answer is A.

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Detailed Solution

(B−1A−1)−1=[(AB)−1]−1=AB=[2−223]
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