sin(tan-1 x), (|x| < 1) = (a) x/√(1 - x2)(b) 1/√(1 - x2)(c) 1/√ – InterviewSolution

1.	sin(tan-1 x), (\|x\| < 1) = (a) x/√(1 - x2)(b) 1/√(1 - x2)(c) 1/√(1 + x2)(d) x/√(1 + x2)
Answer» Answer is (d) x/√(1 + x²)

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