If sin A/2 = -12/13

Find Tan A.

I'm really clueless here. The A/2 made it complicated for me that I couldn't get sin A. Help please. :)

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- Oct 21st 2009, 06:53 AMreiwardTan A
If sin A/2 = -12/13

Find Tan A.

I'm really clueless here. The A/2 made it complicated for me that I couldn't get sin A. Help please. :) - Oct 21st 2009, 07:07 AMmathaddict
- Oct 21st 2009, 07:12 AMmathaddict
- Oct 21st 2009, 07:23 AMreiward
- Oct 21st 2009, 07:29 AMmathaddict