Check whether the signal is periodic or not? x(t) = cos(4t) + 2sin(8t)

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Question:Check whether the signal is periodic or not? x(t) = cos(4t) + 2sin(8t)

1.Periodic with period π/2

2.Periodic with period 2

3.Periodic with period 2/Ï€

4.Not periodic

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  1. Check whether the signal is periodic or not? x(t) = cos(4t) + 2sin(8t)
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