2tan -1 x-cosec2 -1 x-

The correct option is C 2+2x2 1+tan^2(tan^ 1x)+1+cot^2(cot^ 1x)=2+2x^2 ...

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Properties Derived from Trigonometric Identities

2tan -1 x+cos...

Question

$s e c^{2} (t a n^{- 1} x) + c o s e c^{2} (c o t^{- 1} x) =$

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2+x²

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1+x²

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2+2x²

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$\int \frac{x^{2} + 1}{x^{4} + 1} d x$ will be equal to which of the following

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