00:01
We are looking at the function f of x is equal to 2 over x squared minus 1 to the fourth power.
00:13
Now, i would make my students rewrite this, and all of this looks the same, except when you're in the denominator, it's the same thing as having a negative x.
00:22
So as you're looking at this, the grouping symbol, the parentheses, is showing you that you have an inner function, whereas the two times something to the negative fourth power would be your power.
00:33
Function being your clue that you're going to do the chain rule.
00:38
So how do we do the chain rule? you do the derivative of the outer function first where you multiply the exponent by the coefficient in front and then you have to subtract one from your exponent.
00:50
Negative four minus one is negative five.
00:52
And what you do is you leave the interfunction alone and then you have to multiply by the derivative of the inside...