00:01
When they give you a piece like g of x is equal to 2x, and they're trying to verify that that is, that something is the correct antiderivative.
00:12
You just want to find the derivative of that piece.
00:17
So the derivative of x is equal to 2, and that is the same thing as f of x.
00:25
So that's what they wanted you to do in part a, is just take the derivative of g to present.
00:32
Or verify, i guess, because it's not really a proof that the function you come up with is equal to what it said it was going to.
00:40
So what they wanted you to do for part b is to come up with the best.
00:48
So since we now know that f of x is equal to two, they're getting you to practice.
00:54
And it might help you to put like x to the zero power, which is equal to one, that you add one to the exponent.
01:00
So it would be x to the first.
01:02
And then you have to divide by the new exponent.
01:05
Well, two divided by two is still, or sorry, two divide by one is still equal to two...