# Integrals!!!!!!!!!

• November 18th 2007, 10:15 PM
MathNeedy18
Integrals!!!!!!!!!
Evaluate the integral: http://webwork1.math.utah.edu/math12...109294img1.gif.

I dunno what to even do!!!!!! How do I get the antiderivative? I always get a wrong answer!
• November 18th 2007, 11:49 PM
Opalg
Quote:

Originally Posted by MathNeedy18
Evaluate the integral: $\int\frac{s(s+1)^2}{\sqrt s}ds$.

I dunno what to even do!!!!!! How do I get the antiderivative? I always get a wrong answer!

$\frac{s(s+1)^2}{\sqrt s} = \frac{s(s^2+2s+1)}{\sqrt s} = \frac{s^3+2s^2+s}{s^{1/2}} = s^{5/2}+2s^{3/2}+s^{1/2}$. You should be able to integrate that.