Question

Differential Equations:
Solve the equation:
(1+x^2) dy + (1 + y^2) dx = 0 ; y(1) = 0

Answer 1

separable

Answer 2

use a trig sub

Answer 3

Question: Is it not an exact equation?

Answer 4

actuallly lets check

Answer 5

dm/dy=dn/dx if its exat

Answer 6

nope its not exact

Answer 7

in general an equal is exact if the equation can be written in the form Grad F

Answer 8

My = 0 and Nx = 0, right?

Answer 9

no its 2y and 2x

Answer 10

if M = (1 + x^2) and N = (1 + y^2)

Answer 11

no switch it

Answer 12

notice they wrote the order dy dx

Answer 13

ally its dx then dy

Answer 14

usually*