Thread: plz assist me...

Q: solve diff equation:
[2ysin(x)+3y^4*sin(x)cos(x)]dx-[4y^3*cos^2(x)+cos(x)]dy=0

Originally Posted by Mathventure

Q: solve diff equation:
[2ysin(x)+3y^4*sin(x)cos(x)]dx-[4y^3*cos^2(x)+cos(x)]dy=0

If you multiply by the equation becomes exact.

Originally Posted by danny arrigo

If you multiply by the equation becomes exact.

but what is method to calculate integrating factor cos(x)??

Originally Posted by Mathventure

but what is method to calculate integrating factor cos(x)??

IF your ODE is not exact ie. then one looks for an integrating factor such that



If only then

which in your case it is (very fortunate)!