Question

Find the area of the surface generated by revolving x=t+w - 2 sts V2 about the y-axis. The surface area obtained by revolving the given curve around the y-axis is (Type an exact answer in terms of st.) 1.

Answer 1

Frida کد - 2 + کی 2 face of the surface gerected by revolving x = + +52 ) y = +2 + So t . about the y-axis is given by: للغار ام دم عربی) + ۱۰ ( ل 4 : در + لا + 22 1+ 4 +1 : او : )+ 12+ 1+ 2+J2 : +2+2+2 43 4 ) 4+2 43 ( : 21 دلہ 17* )142 + 2 + 3 و 1 (2424 و ده ها همه نة را | }

Let +24 24 52 + 3 = v = 2t + 252 t: -52 to 52 v = 2 & 452) vill to a) du= 2(+ +52)dt ( dv Sv A = z[CVJETA ^-[** ] Azst) A => [24-1) = {X26 A = 5? 99 units. A = 2 . 3 Sunway