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The value of ∫\limits_ - 1 \over √ 2 ^1 \over √ 2 \left( \left( x + 1 \over x - 1 \right)^2 + \left( x - 1 \over x + 1 \right)^2 - 2 \right)^1 \over 2dx is : | Watch the step-by-step video solution for this NIMCET PYQ.