# Math Help - Need Immediate Help Please!!!

1. ## Need Immediate Help Please!!!

differentiate: csc ^2(sqrt x)

2. Originally Posted by simsima_1
differentiate: csc ^2(sqrt x)
By chain rule $\frac{1}{\sqrt{x}} (\csc^2 )' (\sqrt{x})$.

So now compute the derivative of $\csc^2$ by writing it as $\frac{\cos^2 }{\sin^2 }$ and using the quotient rule.
All you do now if substitute $\sqrt{x}$ into that result. And that gives you the value of $(\csc^2 x)'(\sqrt{x})$.