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stau40
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Homework Statement
Find the length of r = theta^(2) for 0<=theta<=pi
Homework Equations
Arc length s = antiderivative of sq rt (f (theta)^(2) + f (derivative theta)^(2))
The Attempt at a Solution
I have worked my way to the antiderivative of sq rt (theta^(4) + 4(theta)^(2)) but I'm not sure where to go from here. I've been looking for a trig identity that will help me thru the antiderivative and get rid of the sq. rt but haven't had any luck. Is there something I'm overlooking? Thanks in advance!