Evaluate rsin drd over the cardiod r = a(1+cos ) above the initial

1.	Evaluate rsin drd over the cardiod r = a(1+cos ) above the initial line.
A.	(4 frac{a^2}{3} )
B.	( frac{a^2}{3} )
C.	(8 frac{a^2}{3} )
D.	(4 frac{a^2}{6} )
Answer» B. ( frac{a^2}{3} )

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