What is the period of the function \(\rm h(x) = \cos \left( {\frac{{4x – McqOptions

MCQOPTIONS

1.	What is the period of the function \(\rm h(x) = \cos \left( {\frac{{4x}}{5}} \right)\)?
A.	π
B.	\(\frac{{4\pi }}{5}\)
C.	\(\frac{{5\pi }}{2}\)
D.	\(\frac{{3\pi }}{2}\)
Answer» D. \(\frac{{3\pi }}{2}\)

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