A) \[P-Q=0\]
B) \[P-2Q=0\]
C) \[P-3Q=0\]
D) \[P-5Q=0\]
Correct Answer: C
Solution :
\[P=\int_{0}^{3\pi }{f({{\cos }^{2}}x)dx}\] and \[Q=\int_{0}^{\pi }{f({{\cos }^{2}}x)dx}\] Also, \[P=3\int_{0}^{\pi }{f({{\cos }^{2}}x)dx=3Q}\] Þ \[P-3Q=0\].
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