39. Find the derivative of y = cos(logx) :-
(1) -sin(logy)
(2) -xsin(logx)
(3)-1/xsin(logy) (4) 1/xsin(logy)
Ans. 3
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Answer:
3
Explanation:
first we do differentiation of cos(logx) = -sin(logx)
then we do differentiation of logx =1/x this whole differentiation is solved using chain rule
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