SOLUTION: Sin θ=4/5, cos θ=-3/5 I need to find θ but I don't understand how to solve for it. If you could show me how to do it or maybe even if possible show me some examples it would be

Algebra ->  Trigonometry-basics -> SOLUTION: Sin θ=4/5, cos θ=-3/5 I need to find θ but I don't understand how to solve for it. If you could show me how to do it or maybe even if possible show me some examples it would be      Log On


   



Question 1203787: Sin θ=4/5, cos θ=-3/5
I need to find θ but I don't understand how to solve for it. If you could show me how to do it or maybe even if possible show me some examples it would be greatly appreciated because I really want to try and solve the rest of the problems myself. :D

Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

+sin+%28theta%29=4%2F5
+theta=sin%5E-1%284%2F5%29
+theta=sin%5E-1%284%2F5%29
+theta=0.927295218 radians
+theta=53.13°

+cos%28theta%29=-3%2F5
+theta=cos%5E-1%28-3%2F5%29
+theta=2.2142974355881 radians
+theta=126.9°