Question

4. Determine the length of the curve r = تا انت (y - 1)], where 45 y < 9.

Answer 1

Given equation of the curve is 2-2 (4-1) 3/2, where 454 49 The Arc Length Formula is d s = 8 Vit (9' (4))? dy Let a = 9ly) 3/ 3 (4-1) 3/2 d g'(Y) = (3 (4-1)(a) 312 d (4-1) dy . [ / (9-1992] g'(Y) = (9-13'42 CScanned w anner

S [cy-1) P2]² dy 9 S JI+(91) dy $ 11+ (0-17 = S sy dy 12 dy 는 onu CScanned with CamScanner

-Power rule لا دا دي که با 3/4 (=شي ) ما د)3 | ) م ہے و ( 24 - 8) و 3 with Camsener CS