00:01
Okay, so in this problem we want to solve the differential equation, d .y over d x equals to x over y times e to the x over 8.
00:17
This is an autonomous differential equation.
00:21
That means we can isolate these two variables.
00:25
So we have y times dy equals to x times e to 8 over x times d x.
00:33
Then we just integrate both sides.
00:37
So for the left -hand side, equals to 1 -half, y squared, plus a constant c1.
00:46
For the right -hand side, we need to use integration by part.
00:49
Let u equals to x, d -e equals to dx, bv equals to e to 8, x over 8.
00:59
Sorry, this is x over 8, not 8 over x.
01:08
And the v equals to e to d x over 8 times 8 times the x...