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If A=[(a,b),(b,a)]and A^(2)=[(alpha,beta...

If `A=[(a,b),(b,a)]and A^(2)=[(alpha,beta),(beta,alpha)]`, then -

A

`alpha=a^(2)+b^(2), beta=ab`

B

`alpha=a^(2)+b^(2), beta=2ab`

C

`alpha=a^(2)+b^(2), beta=a^(2)-b^(2)`

D

`alpha=2ab, beta=a^(2)+b^(2)`

Text Solution

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The correct Answer is:
B
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MOTION-MATRICES -Exercise - 1
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