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If y = sin x l n(3x) then (dy)/(dx) will...

If `y = sin x l n(3x)` then `(dy)/(dx)` will be :

A

`(3 cos x)/(x)`

B

`(sin x)/(x)+(cos x)l n(3x)`

C

`sin (x^(2))+cos x l n(3x)`

D

`3 x sin x+3 xos x l n(x)`

Text Solution

Verified by Experts

The correct Answer is:
B
`(dy)/(dx)=(sinx)/(x)+l n(3x)cos x`.
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