And now what's the sine of our second derivative when x is equal to negative one? When x equals negative one, so let's see, negative one to the fifth power is negative one cube root of negative one is negative one. And so we're gonna have negative 2 9ths divided by negative one is gonna be positive 2 9ths. So our sine right over here is gonna be positive. And when, and this is gonna be in general when we're dealing with any negative value. Because if you take any negative value to the fifth power, it's gonna be negative. And then you take that, the cube root of that, you're gonna have negative.