Help me solve pet (iii) and part (iv)

2. Find the length of the curve. ()y = = (x2 + 4)3/2;0 5x53 (ii) y = 2In (sin=); 1/35 x S n (iii)x = 5 + 12va :25 y54 (iv) x = In ey-1 ;asysb, a>0 urve about the x ax