Find the arc length parameter along the given curve from the point where t= 0 by evaluating the integral s(t) = ||v(t)| dt. Then find the length of the indicated portion of the curve r(t) = 9cos...

Extracted text: Find the arc length parameter along the given curve from the point where t= 0 by evaluating the integral s(t) = ||v(t)| dt. Then find the length of the indicated portion of the curve r(t) = 9cos ti+9sintj+7t k, where 0sts- 2 The arc length parameter along the curve, starting at t=0 is s(t) =| (Type an exact answer, using radicals as needed.)