If x + y = tan-1 y and y" = f(y)y' then f(y) = | Mathematics | SolveeIt | Solveeit

Today, August 18

Question

If x + y = tan-1 y and y" = f(y)y' then f(y) =

A

$\frac{1}{y}$

B

$\frac{2}{y}$

C

$\frac{2}{y^3}$

D

$-\frac{2}{y^3}$

Answer

$\frac{2}{y^3}$

Explanation

Solution

The correct option is (C) : $\frac{2}{y^3}$ .