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July 24, 2014

July 24, 2014

Posted by **yo** on Monday, October 10, 2011 at 5:18pm.

- trig -
**Steve**, Monday, October 10, 2011 at 5:40pmThe nice thing is that the equations for sin and cosine automatically take into the signs involved.

consider the point (-1,-10) in the third quadrant. h = sqrt(101) and is always positive

sin = y/h = -10/sqrt(101) = -0.995

cos = x/h = -1/sqrt(101) = -0.0995

- trig -
**Darriana**, Thursday, October 13, 2011 at 9:03pmSin therapists divide by 2

- trig -
**Darriana**, Thursday, October 13, 2011 at 9:03pmSin theta divide by 2

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