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If y = 4cos4x find $\int y d x$

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sin 4x + C

cos 4x + C

4sin 4x + C

–sin 4x + C

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detailed solution

Correct option is A

y=4cos⁡4xLet4x=t4dx=dtdx=dt4∫ydx=4cos⁡tdt4∫4cos⁡tdt4=sin⁡t+c=sin⁡4x+c

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If y = 4cos4x find ∫ydx

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If y = 4cos4x find $\int y d x$