SOLUTION: Find the sin(x) if cos(2x)=2/3, with x terminating in quadrant III

SOLUTION: Find the sin(x) if cos(2x)=2/3, with x terminating in quadrant III

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Question 675749: Find the sin(x) if cos(2x)=2/3, with x terminating in quadrant III
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
replace with

since is negative in quad III, solution is
degrees
or
degrees.....in quadrant III

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