3 years ago

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

1 answer:

vladimir2022 [97]3 years ago

4 0

$the\ period\ of\ cosx\ is\ 2\pi\\\\the\ period\ of\ 3cosx\ is\ 2\pi\\\\the\ period\ of\ 3cos\frac{x}{5}\ is\ 5\cdot2\pi=10\pi$

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