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January 28, 2015

January 28, 2015

Posted by **ellen** on Tuesday, October 13, 2009 at 3:59am.

- math -
**Reiny**, Tuesday, October 13, 2009 at 8:36amyour new function is

y = (sin 2x - sinx) + sinx

= sin2x

notice your amplitude has not changed, so the maximum value is still 1.

your period is now 2pi/2 or 360º/2

= pi radians or 180º

If you look at the first complete graph, doesn't it reach its maximum at the end of the first quarter of its period?

And that would be pi/4 or 45º

check: what is sin (2*45º) ?

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