The differential equation is dy dx + 1− y 2 1− x 2 =0.
Simplify the above equation.
dy dx + 1− y 2 1− x 2 =0 dy dx =− 1− y 2 1− x 2 dy 1− y 2 = −dx 1− x 2
Integrate the both sides of above equation.
sin −1 y=− sin −1 x+C sin −1 x+ sin −1 y=C
Therefore, the general solution of differential equation is sin −1 x+ sin −1 y=C.