Il y x , then find at xm 1. If x=tc...
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Il y x , then find at xm 1. If x=tcost and y=t+ sint, then find a att 7. Letf(x) = sinx, g(x) = x, h() = loge x. If y()

JEE/Engineering Exams
Maths
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( x=t cos t ) ( frac{d x}{d t}=-t sin t+cos ) 0 ( f=y=t+sin t ) ( therefore frac{d y}{d t}=1+cos t ) ( f^{prime} frac{d x}{d y}=frac{d x / d t}{d y / d t}=frac{-t sin t+cos t}{1+cos t} ) ( frac{d x}{d y}=frac{cos t-tan t}{1+cos t} ) ( frac{frac{d^{2} x^{0}}{d y^{2}}=(1+cos t)(-sin t-t cos t-sin t)}{frac{-(cos t-operatorname{tg} n t)(-sin h}{1+cos t)^{2}}} ) sint coss ( frac{d^{2} x}{d y^{2}}=frac{sin t cos t-t sin ^{2} t-2 sin t-operatorname{tas} t-2 sin t}{(1+cos t)^{2}} cos t-t cos ^{2} t ) ( frac{-sin t cos t-tleft(sin ^{2} t+cos ^{2} tright)-t cos t-2 sin t}{(1+cos t)^{2}} ) ( (1+cos t) ) fast-2 rint ( sum frac{-7 / 2-0-0-2}{1}=-left(frac{-left(frac{7}{2}+2right)}{2}right) ) ( =pi / 2 )
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