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January 31, 2015

January 31, 2015

Posted by **McKenna Louise** on Monday, February 10, 2014 at 8:34pm.

- math - trig -
**Steve**, Monday, February 10, 2014 at 8:40pmsin(x) and sin(180-x) have the same value.

gotta use the law of cosines, which takes into account the change of sign for obtuse angles.

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