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OpenStudy (anonymous):
Solve the equation on the interval [0,2π). sin(theta) cos(theta) = -1/2
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OpenStudy (anonymous):
@nagode64 multiply both sides by 2 , 2sin(theta) cos(theta) = -1 sin(2theta) = -1 as sin is negative so it will lie in the third and fourth quadrant
OpenStudy (anonymous):
so u can determine the value of theta
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