Trick Trig Question!!!?
angles α and β are obtuse angles in quadrant II. if cscα=3 and β=-1/3, determine the exact value of cos(α+β)
Someone PLEASE find the answer and explain how to solve it thoroughly too.
- alexLv 72 months agoFavorite Answer
α and β are obtuse angles in quadrant II---> sin α >0 , cos α<0 , also sin β >0 , cos β<0identity (sinx)^2+(cosx)^2=1
You can do with all the given information
- ♥Astrid♥Lv 72 months ago
Your question statement has to be wrong. "β = -1/3" makes no sense at all, that would land the angle in quadrant IV, and you said initially that both angles were in quadrant II.