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If y = sin x & x = 3t then $\frac{d y}{d t}$ will be

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3 cos (x)

cos x

cos (3t)

– cos x

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detailed solution

Correct option is A

if y=sin⁡x,x=3tdydx=cos⁡x,dxdt=3dydt=dydx×dxdt=3cos⁡x=3cos⁡(3t)

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If y = sin x & x = 3t then dydt will be

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If y = sin x & x = 3t then $\frac{d y}{d t}$ will be