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October 22, 2014

October 22, 2014

Posted by **Anonymous** on Tuesday, August 9, 2011 at 11:03pm.

- trig -
**Reiny**, Tuesday, August 9, 2011 at 11:20pmIf tanØ = 7/24 and Ø is in III

then sinØ = -7/25 and cosØ = -24/25

sin (2Ø) = 2sinØcosØ

= 2(-7/25)(-24/25) = 336/625

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