SOLUTION: Find all values of &#952; in radians with -2&#960; < &#952; < 2&#960; such that cos(&#952;) = -1/2

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Question 834386: Find all values of θ in radians with -2π < θ < 2π such that cos(θ) = -1/2
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Find all values of θ in radians with -2π < θ < 2π such that cos(θ) = -1/2
cos%28theta%29=-1%2F2
theta%29=-4π/3,-2π/3,2π/3,4π/3 (in quadrants II and III in which cos<0)