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If A and B are symmetric matrices then...

If A and B are symmetric matrices then

A

A+B is skew-symmetric

B

A+B is symmetric

C

A+B is a diagonal matrix

D

A+B is a zero matrix

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The correct Answer is:
B
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CHHAYA PUBLICATION-ADJOINT AND INVERSE OF A MATRIX AND SOLUTION OF LINEAR SIMULTANEOUS EQUATIONS BY MATRIX METHOD-LONG ANSWER TYPE QUESTIONS
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  14. If A={:[(4,2),(-1,1)]:} then (A-2I)(A-3I) is equal to

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