If $$x = \sqrt a+ \frac{1}{{\sqrt a }}{\text{,}}$$$$y = \sqrt a- \frac – McqOptions

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1.	If $$x = \sqrt a+ \frac{1}{{\sqrt a }}{\text{,}}$$$$y = \sqrt a- \frac{1}{{\sqrt a }}{\text{,}}$$$$\left( {a > 0} \right)$$then the value of x4 + y4 - 2x2y2 is?
A.	6
B.	0
C.	0
Answer» B. 0

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