February 20, 2017

Homework Help: trig

Posted by stacey graham on Saturday, March 27, 2010 at 5:58pm.

find the exact value given that cosA=(1/3) in quad I, sin B=(-1/2) in quad 4, and sin C=(1/4) in quad 2

tan(B+C) ?

At the end of my equation I had (sqrt45/15) over (1-sqrt15/15) , how do I rationalize or did I make an error in calculation

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