One over sine of x and then times cosine of x. So once again, just to make sure that you don't fall into one of these misconceptions, let me box this off so it's a little bit cleaner. So to just make sure that you don't fall into one of these misconceptions here, recognize the composition, that this is not the product of natural log of x and sine of x, it's natural log of sine of x. And then when you're actually applying the chain rule, derivative of the outside with respect to the inside, so the derivative of natural log of x is one over x, so that applied when the input is g of x is one over sine of x, and then multiply that times the derivative of the inner function. So don't forget to do this right over here. Now another misconception that students have is instead of doing what we just did, instead of applying the chain rule like this, they take the derivative of the outer function with respect to the derivative of the inner function. So for example, they would compute this, f prime of g prime of x. f prime of g prime of x.