# More Diff EQ fun

by mr_coffee
Tags: diff
 HW Helper P: 1,025 What's with the $1\sin (y)$ ? Are you sure it's not $i\sin (y)$ ?
 HW Helper P: 1,025 If it is indeed $1\sin (y)$ I get $$F(x,y)=-7x^2-5x+e^y\left( 4\cos (y) + 5\sin (y)\right) =K$$ same as you.