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December 18, 2014

December 18, 2014

Posted by **garrett** on Sunday, March 4, 2012 at 11:40am.

- trig -
**MathMate**, Sunday, March 4, 2012 at 1:38pmHint:

When there is a mixture of tan, sin and cos, use identities to convert everything into sin and cos, and simplify. This usually works, especially if the right-hand side is in sin and cosine.

For your information,

tan(x)=sin(x)/cos(x)

cot(x)=cos(x)/sin(x)

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