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The value of 'k' such that the matrix ((...

The value of 'k' such that the matrix `((1,k),(-k,1))` is symmetric is :

A

0

B

1

C

`-1`

D

2

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The correct Answer is:
A
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MODERN PUBLICATION-MATRICES-Objective Type Questions (A. Multiple Choice Questions)
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  13. If A,B are symmetric matrices of same order, then AB-BA is a :

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  14. If A=[(4,2,3),(1,5,7)] and B=[(1,3,7),(0,4,1)], then 2A+B is :

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