defence exam ITBP (Telecommunication) Head Constable Mock Test 2024 Mathematics Differential Calculus Evaluation of derivatives
If y = tan (cot−1 x), then \(\frac{{{\rm{dy}}}}{{{\rm{dx}}}}\) at x = 1 is equal to
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1
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-1
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0
If y = tan (cot−1 x), then \(\frac{{{\rm{dy}}}}{{{\rm{dx}}}}\) at x = 1 is equal to