unable to solve this DE

[aditya.dhavale]

I am unable to solve this qurstion sir,

dy/dx = -x(sqrt (1+x2)) / y(sqrt (1+y2))

 

[stapel]

I am unable to solve this qurstion sir,

dy/dx = -x(sqrt (1+x2)) / y(sqrt (1+y2))

Have you tried separation?

. . . . .\(\displaystyle y\, \sqrt{1\, +\, y^2}\, dy\, =\, -x\, \sqrt{1\, +\, x^2}\, dx\)

Integrate both sides, etc, etc.

 

[aditya.dhavale]

yess

Have you tried separation?

. . . . .\(\displaystyle y\, \sqrt{1\, +\, y^2}\, dy\, =\, -x\, \sqrt{1\, +\, x^2}\, dx\)

Integrate both sides, etc, etc.

...Thanks...got it with 1+y2=u