00:01
Okay, we are going to find the derivative in terms of dy, dx, or derivative, which is dydx, of our function given.
00:10
I'm going to rewrite this function a little bit.
00:12
I'm going to say y equals.
00:13
I'm going to leave a big space.
00:15
I'm going to put my 2 plus tangent x squared all to the third power.
00:21
Okay, so the reason why i left this nice space is now we have logarithmic differentiation.
00:27
So if we bring an ln in, then we're able to take our exponent and move it and bring it in front.
00:35
So now when we go to take our derivative, we have two sides take the derivative.
00:40
So the derivative of y is dy, d, y, and then i have to put it over y.
00:46
Right, ln, you always do derivative over original.
00:50
Now on this side, i have the one -third out front, and then if i look at what i have inside of my ln, the derivative of 2 would be 0.
01:00
The derivative of tangent is a secant squared of whatever inside.
01:06
And then i have to multiply by the derivative of the inside...