Q. 15 B4.3( 7 Votes )

If <span lang="EN

Answer :

We have-


ey(x+1) = 1


...(1)


On differentiating both sides w.r.t x, we get-

Applying the formula:


Now, we have,




[using (1)]


...(2)


Again differentiating w.r.t x, we get




Hence Proved.

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