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If matrix A=[[1, -1], [1, 1]] then...

If matrix `A=[[1, -1], [1, 1]]` then

A

`A'=[[1, 1], [1, -1]]`

B

`A[[1, 1], [-1, 1]]=2I`

C

`A^(-1)=[[1, 1], [-1, 1]]`

D

`lambdaA=[[lambda, -lambda], [1, -1]],` where `lambda` is a non-zero scalar

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The correct Answer is:
B
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