trig
posted by stacey graham .
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)

see reply to
http://www.jiskha.com/display.cgi?id=1269577464
and use the tan(B+C) expansion formula
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