Posted by stacey graham on .
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)

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