The value of the integral \\int_{-1 \/ 2} ^{1 \/ 2}\{(\frac{x+1}{x-1})^{2}+(\frac{x-1}{x+1})^{2}-2\}^{1 \/ 2} d x is equal to

WBJEE 2021 Math Solved Paper

CATEGORY - I (Q:1 to Q50)

Carry 1 mark each and only one option is correct. In case of incorrect answer or any combination of more than one answer, ¼ mark will be deducted.

Question : 46 of 75

Marks: +1, -0

The value of the integral

1∕2

∫

−1∕2

{(

x+1

x−1

)2+(

x−1

x+1

)2−2}1∕2dx is equal to

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