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If A=[(3,1),(1,-3)] be such that A^(-1)=...

If `A=[(3,1),(1,-3)]` be such that `A^(-1)=kA` then the value of k is

A

11

B

`-11`

C

`(1)/(10)`

D

`-(1)/(10)`

Text Solution

Verified by Experts

The correct Answer is:
C
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ICSE-DETERMINANTS -Multiple Choice Questions
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  13. If [(1,3,9),(1,x,x^(2)),(4,6,9)] is singular matrix then x =

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  16. If Delta(1)=|{:(Ax,x^(2),1),(By,y^(2),1),(Cz,z^(2),1):}|" and "Delta(2...

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