- #1
roldy
- 237
- 2
Homework Statement
a) s^2*t''+st*t'=s
b) y(dx/dy)^2=x^2+1
c) 17y''''-t^6*y"-4.2y^5=3cost(t)
Homework Equations
The Attempt at a Solution
For part a I thought about doing a reduction of order but I can't because I have the variable s present. Not sure what my other options are.
Part b I solved for dx/dy but now I'm stuck. Can't think clearly
Part c I'm not even remotely sure on how to do this. I was thinking integrating factor but I don't know.