39px^{p-1}y^{q}+x^{p}qy^{q-1}\frac{dy}{dx}=(p+q)(x+y)^{p+q-1}(1+\frac{dy}{dx})
now i think u can rearrange the terms to get \frac{dy}{dx}
4 Answers
39
1don't you think it would be tedious to do that and then cancelling the terms ....i think taking log first and then differentiating will help...
1just take log and do naa.........u'll get..........
plogx*qlogy=(p+q)log(x+y)
u'll get remaning by differentiating.........
