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April 21, 2015

April 21, 2015

Posted by **jim** on Sunday, February 19, 2012 at 8:08pm.

- trig -
**Steve**, Sunday, February 19, 2012 at 8:45pmsince period of sin(x) is 2pi, period of sin(x/2) is such that 0 <= x/2 <= 2pi, or 0 <= x <= 4pi

amplitude is unchanged from sin(x)

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