Question

Which of the following differential equations is/are not separable?

Answer 1

1. dy/dt = 1+t/yt
2. d^2y/dx^2 = 3xy + dy/dx
3. dy/dx = y^2 +yx

Answer 2

what do you think?

Answer 3

did you learn the test?

Answer 4

I'm not entirely sure. What is the test?

Answer 5

@phi

Answer 6

try writing each in the form
f(x) dx + g(y) dy = 0

Answer 7

@phi I believe only the first equation can be separated.

Answer 8

yes, I think so

Answer 9

Thank you very much!