Math 262 Spring 2023 Chapter 9 Practice Problems 1.(i)Find the length of the curve. y = T 2xz il s x 52 (ii)Find the area of the surface obtained by rotating the curve in (i) about the y_axis. 2.Find the length of the curve. (i)y = =(x2+4)3/2;05x53 (ii) y = 2 In (sin; ) ; 1/3 5 x ST (iii)x = + 723 ; 2Sys4 (iv) x = In ; a sys b , a >0 3. Find the area of the surface obtained by rotating the given curve about the x axis. (i) 9x = yz + 18 ;2 5 x$6 (ii) y = cos 2x ; 0 S x S n/6 (iii) x = = (y2 + 2)3/2; 1 sys2 (iv)= += =1;a>b 4. Find the area of the surface obtained by rotating the given curve about the y_axis. (i) y = 1 - x2; 0