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

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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