In: Advanced Math
Check that the following differential equation is not exact. Find an integrating factor that makes it exact and solve it.
ydx + (3 + 3x-y) dy = 0
__
Solve the initial value problem:
(cos xsen x-xy ^ 2) dx + (1-x ^ 2) ydy = 0 if y (0) = 2
__
Solve the initial value problem:
y ^ (2) cosx dx + (4 + 5ysenx) dy = 0; y (π / 2) = 1