I need help showing my work for all 4 exercises. Thank you.

From the text, do Exercises 22 and 30.b from section 11.5 and Exercises 2 and 6 from section 13.3 14th ed. Exercise 13.3.2 Find the length of r(t ) = (6 sin 2t )i + (6 cos 2t )j + 5t k for O s t s n. 14th ed. Exercise 13.3.6. Find the length of r(t ) = 6t 3i - 2t 3j - 3t k for 1 s t s 2. Exercise 11.5.22. Find the length of the curve whose polar equation is r = e /v2 for O s 0 s It. Exercise 11.5.30.b. Find the length of the curve whose polar equation is r = a cose for O S 0 S J