April 24, 2014

Homework Help: maths - trigonometry

Posted by anonymous on Saturday, June 19, 2010 at 11:56am.

I've asked about this same question before, and someone gave me the way to finish, which I understand to some extent. I need help figuring out what they did in the second step though. How they got to the third step from the second.

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


makes sense so far, but I don't know how they got from here to the next one


or to the next


but from there I understand



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