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

Let `A=[(1,0,0),(0,1,1),(0,-2,4)],I=[(1,0,0),(0,1,0),(0,0,1)] and A^-1=[1/6(A^2+cA+dI)]` Then value of `c and d` 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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