SOLUTION: Solve each equation for 0 less than or equal to theta less than 360. -1/2 = cos theta

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Question 619831: Solve each equation for 0 less than or equal to theta less than 360.
-1/2 = cos theta
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

Solve each equation for 0 less than or equal to theta less than 360

cosθ = -1/2    θ is  120°, 240°

See below the (cosx, sinx) summary