The period of the signal X(t) = cos (2 πt) cos (4 πt) – sin (2πt) – McqOptions

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1.	The period of the signal X(t) = cos (2 πt) cos (4 πt) – sin (2πt) sin (4πt) is
A.	\(\frac{1}{3} sec\)
B.	\(\frac{1}{6} sec\)
C.	\(\frac{1}{8} sec\)
D.	can't be determined
Answer» B. \(\frac{1}{6} sec\)

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