If the matrix A=({:(0,2),(K,-1):}) satis...

If the matrix `A=({:(0,2),(K,-1):})` satisfies `A(A^(3)+3I)=2I`, then then value of K is

A

`(1)/(2)`

B

1

C

`-1`

D

`-(1)/(2)`

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The correct Answer is:

A

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