Hello, finalfantasy!

I can't see how you got in there . . .i'm having some problem differentiating this function.

The answer says:

but the answer i'm getting is:

The function is: .

We have: .

. .

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

If we didn't simplify first, we can use the Chain Rule . . .

We have: .

Then: .

. .

. .