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February 28, 2015

February 28, 2015

Posted by **richard** on Wednesday, May 5, 2010 at 11:11pm.

y = f(x) = √3/2 sin(2x) - 1/2 cos(2x)

if you can't graph it can you at least get it into that simpler form which is graph able.

- trig -
**drwls**, Thursday, May 6, 2010 at 2:05amThat can be rewritten

sin(pi/3)sin 2x - cos(pi/3)cos2x

= cos(2x + pi/3)= cos [2(x + pi/6)]

which is a cosine function with an amplitude of 1, a period of pi and a phase shift of -pi/6

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