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Let A=[1 0 0 0 1 1 0-2 4],I=[1 0 0 0 1 0...

Let `A=[1 0 0 0 1 1 0-2 4],I=[1 0 0 0 1 0 0 0 1]a n dA^(-1)=[1/6(A^2+c A+d I)]dot` Then value of `ca n dd` are a.`(=6,-11)` b. `(6,11)` c. `(-6,11)` d. `(6,-11)`

A

`A^3-6A^2+11A-6l=0`

B

`A^-1=1/6(A^2-6A+11)`

C

`A^2` in non-singular

D

A is singular

Text Solution

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The correct Answer is:
1,2,3
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