00:01
So we're looking for dwdt.
00:04
So first we'll need to find dwdx, which will be 10xy cubed, z to the fourth.
00:15
And then we'll need dx, dt, which will be 2t.
00:22
And then we're going to need to find dw, dy, which will be 15x squared, y squared, times z to the fourth, and then we're going to need dydt, which will be 3t squared, 3t squared, and then we're onto dwdz.
00:46
We're going to add dwdz times dzdt, 20 x squared times y cubed.
00:59
That's rough looking.
01:00
I'm going to clean that up real quick.
01:02
That should have been x squared times y cubed...