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The period of 3cosx/5 is..???
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The period of 3cosx/5 is..???



User Victor Odouard
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the\ period\ of\ cosx\ is\ 2\pi\\\\the\ period\ of\ 3cosx\ is\ 2\pi\\\\the\ period\ of\ 3cos(x)/(5)\ is\ 5\cdot2\pi=10\pi
User RedYeti
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