Question

find the length of the polar curve r=1+costheta

Answer 1

http://tutorial.math.lamar.edu/Classes/CalcII/PolarArcLength.aspx

Answer 2

length = integrate(sqrt(r(theta)^2+r'(theta)^2))dtheta) from theta=0 to theta=2pi

Answer 3

what do you do once you get sqrt of 2+2cos(theta)?

Answer 4

let u=cos(theta)
du=-sin(theta)