यदि x = (sqrta)/( 2) + (2)/( sqrta) तथा ...

यदि `x = (sqrta)/( 2) + (2)/( sqrta)` तथा `y= ( sqrta)/(2) - (2)/( sqrta) ( a gt 0)`, तब `x^(4) + y^(4) - 2x^(2) y^(2)` का मान है:

A

1

B

2

C

4

D

16

लिखित उत्तर

Verified by Experts

The correct Answer is:

D

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