00:01
Okay, so f of g of x.
00:03
We're going to plug g of x into f.
00:07
So we're going to have kind of match this with colors.
00:11
My f would be the square root of something, and my g of x is x cubed minus two.
00:21
Okay, the next one is g of f of x.
00:27
So we're going to do something cubed minus two.
00:34
So we're taking the square root of x and cubing it.
00:42
Okay, so we can simplify that to x to the three halves minus two.
00:55
X one is f of f of x.
00:57
We're going to take the square root of the square root of x.
01:01
We're taking the square root of something that's the outside function and the inside function is the square root of x and the square root of x is just x to the one -fourth or the fourth root of x...