How do I find the exact length of the polar curve $$r = 1+sin(\theta)$$ from $$\frac{\pi}{3} \leq \theta \leq \pi $$?
I had originally setup my equation as $$\int_{\frac{\pi}{3}}^{\pi} \sqrt{(1+\sin(\theta) )^2 + (\cos\theta)^2} * d\theta$$ but that got me the incorrect answer. What am I doing wrong?