Differenciate the following beca-1 ...
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Differenciate the following beca-1 Secati

Railway Exams
Maths
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If ( frac{d}{d x}left(frac{sec x cdot-1}{sec x+1}right) ) ( =frac{d}{d x}left(frac{sec x-1}{sec x+1} times frac{sec x-1}{sec x-1}right) ) ( =frac{d}{d x}left(frac{(sec x-1)^{2}}{tan ^{2} x}right) ) ( =frac{d}{d x}(cos x-cos x)^{2} ) ( =2 operatorname{cosec}(operatorname{cosec} x-cot x)^{2} )
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