The chain rule tells us that the derivative of y with respect to t is going to be equal to the derivative of y with respect to x times the derivative of x with respect to t. So let's apply it to this particular situation. We're gonna have the derivative of y with respect to t is equal to the derivative of y with respect to x. Well, what's that? Well, y is equal to the principal root of x. You could also write this as y is equal to x to the 1 1 2 power. We could just use the power rule. The derivative of y with respect to x is 1 1 2 x to the negative 1 1 2.