Q28 of 354 Page 12

Find , when


⇒ y = a + b





a = (sin x)x


Taking log both the sides:


⇒ log a= log (sin x)x


⇒ log a= x log (sin x)


{log xa = alog x}


Differentiating with respect to x:











Put the value of a= (sin x)x :





Differentiating with respect to x:













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