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September 1, 2014

September 1, 2014

Posted by **rachel** on Tuesday, April 13, 2010 at 3:42pm.

- trig -
**Reiny**, Tuesday, April 13, 2010 at 5:38pmfor any y = a cos(kx) or y = a sin(kx)

the period is 2π/k

so for yours the period is 2π/2 = π

So there is one complete "motion" every π seconds

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