- #1
fred_91
- 39
- 0
Homework Statement
Solve the differential equation:
dy/dx = 2/(x+e^y)
Homework Equations
The Attempt at a Solution
I tried to use the substitution v=x+e^y, but I didn't get very far:
v’=1+e^y y’
v’-1=(v-x)y'
y’ = (v’-1)/(v-x)
(v’-1)/(v-x) (x+v-x)=2
V (v’-1)/(v-x)=2
vv’-v=2(v-x)
vv’-3v=-2x
any help will be very much appreciated.