Q. 174.5( 4 Votes )

Find A–1</su

Answer :

We have,

We have to find A-1 and

Firstly, we find |A|

Expanding |A| along C1, we get

= 0 – 1 {0 – 1} + 1 {1 – 0}

= 1 + 1

= 2

Now, we have to find adj A and for that we have to find co-factors:

Now, we have to show that

= A-1

Hence Proved

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