10. (®) 21+x2) Megocosm Cognitions ...
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10. (®) 21+x2) Megocosm Cognitions Pvt. Ltd. 57. Kalu Soral, Sarvapriya Vihar New Delh a Vihar, New Delhi - 110016. Email: enquiry omegacosmcognitions.com website : www.megacosmcognitions.com

JEE/Engineering Exams
Maths
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( 10.7 y ln t sin ^{-1}left(frac{1-n^{2}}{1+n^{2}}right), ) then ( frac{d y}{d n} ) is ( frac{d y}{d x} cdot frac{2 x}{1+x^{2}}=frac{-2 xleft(1+x^{2}+1-x^{2}right)}{left(1+x^{2}right)^{x}} ) ( frac{d y}{d x}=frac{-2}{1+x^{2}} ) oftion ( c ) is right answer.
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