SOLUTION: Solve each equation on the interval 0<theta<2 pi , theta is bigger or equal to 0 and smaller than 2 pi sin(3 theta)= -1 cos (2 theta)= - 1/2

Algebra ->  Trigonometry-basics -> SOLUTION: Solve each equation on the interval 0<theta<2 pi , theta is bigger or equal to 0 and smaller than 2 pi sin(3 theta)= -1 cos (2 theta)= - 1/2      Log On


   

Question 975571: Solve each equation on the interval 0 sin(3 theta)= -1 cos (2 theta)= - 1/2
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
sin%283%2Atheta%29=-1
3%2Atheta=%283%2F2%29pi
theta=pi%2F2
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cos%282%2Atheta%29=-1%2F2
2%2Atheta=%282%2F3%29pi and 2%2Atheta=%284%2F3%29pi
theta=pi%2F3 and theta=%282%2F3%29pi