Period of \[\cos (7x-5)\]is – McqOptions

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1.	Period of \[\cos (7x-5)\]is
A.	\[\frac{2\pi -5}{7}\]
B.	\[2\pi -5\]
C.	\[\frac{2\pi }{7}\]
D.	\[\frac{\pi }{7}\]
Answer» D. \[\frac{\pi }{7}\]

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