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September 2, 2014

September 2, 2014

Posted by **stacey graham** on Thursday, March 25, 2010 at 2:26pm.

- 11th grade -
**Reiny**, Thursday, March 25, 2010 at 2:41pmLS

=sin(4u)

= sin(2u + 2u)

= sin(2u)cos(2u) + cos(2u)sin(2u)

= 2sin(2u)cos(2u)

= RS

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