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OpenStudy (anonymous):
PLEASE HELP tan(theta)=-1, write an expression for all solutions to the equation.
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OpenStudy (mertsj):
If the tangent is negative, the angle must be in quadrant 2 or 4 So the two solutions between 0 and 2pi are 3/4pi and 7/4pi So all solutions are 3/4pi, 7/4pi +n( 2pi)
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