y > tomi ( nine y corn) find dyycha...
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y > tomi ( nine y corn) find dyycha.

JEE/Engineering Exams
Maths
Solution
56
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( Rightarrow y=tan ^{-1}(sin x+cos x) ) ( therefore tan y=sin x+cos x ) differentiating. ( w cdot x+f 0 x ) ( =sec ^{2} y frac{d y}{d x}=cos x-sin x ) ( therefore frac{d y}{d x} Rightarrow frac{cos x-sin x}{sec ^{2} y} )
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