So let's do the product rule. So we're gonna take the derivative of the first expression. So derivative of x to the sixth is six x to the fifth times the second expression, sine to the third of x, or sine of x to the third power, plus the first x to the sixth times the derivative of the second, and I'm just gonna write that, d dx of sine of x to the third power. Now, to evaluate this right over here, it does definitely make sense to use the chain rule, use the chain rule. And so what is this going to be? Well, I have the derivative of something to the third power, so that's going to be three times that something squared times the derivative of that something. So in this case, the something is sine of x, and the derivative of sine of x is cosine of x.