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Find the Area of the Surface Generated by Revolving the Curve

Question 104

Multiple Choice

Find the area of the surface generated by revolving the curve about the given axis. x=3cos3θ,y=3sin3θ,0θπ/2x = 3 \cos ^ { 3 } \theta , y = 3 \sin ^ { 3 } \theta , 0 \leq \theta \leq \pi / 2
(i) xx -axis;(ii) yy -axis


A) (i) 275π\frac { 27 } { 5 } \pi ; (ii) 275π\frac { 27 } { 5 } \pi
B) (i) 545π\frac { 54 } { 5 } \pi ; (ii) 545π\frac { 54 } { 5 } \pi
C) (i) 2710π\frac { 27 } { 10 } \pi ;(ii) 275π\frac { 27 } { 5 } \pi
D) (i) 545π\frac { 54 } { 5 } \pi ; (ii) 275π\frac { 27 } { 5 } \pi
E) (i) 545π\frac { 54 } { 5 } \pi ; (ii) 1085π\frac { 108 } { 5 } \pi

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