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July 4, 2015

Homework Help: maths - trigonometry

Posted by anonymous on Friday, June 18, 2010 at 10:40pm.

I have my maths exam on Tuesday and cannot remember how to do trigonometric identities at all. I was so sure, but now I'm not. I asked a similar question earlier, but I still don't quite understand. Please give me step-by-step instructions?

[sinx + tanx] / [cosx +1] = tanx

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