Area of a triangle whose vertices are \[(a\cos \theta ,b\sin \theta ),\] \[(-a\sin \theta ,b\cos \theta )\] and \[(-a\cos \theta ,-b\sin \theta )\] is

Area of a triangle whose vertices are \[(a\cos \theta ,b\sin \theta ),

1.	Area of a triangle whose vertices are \[(a\cos \theta ,b\sin \theta ),\] \[(-a\sin \theta ,b\cos \theta )\] and \[(-a\cos \theta ,-b\sin \theta )\] is
A.	\[a\cos \theta \sin \theta \]
B.	\[ab\sin \theta \cos \theta \]
C.	\[\frac{1}{2}ab\]
D.	\[ab\]
Answer» E.

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Area of a triangle whose vertices are \[(a\cos \theta ,b\sin \theta ),\] \[(-a\sin \theta ,b\cos \theta )\] and \[(-a\cos \theta ,-b\sin \theta )\] is

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