Question 409268
Find all values of &#952; in radians with -2pi<&#952;<2pi such that tan(&#952;) = 0 
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Since tan(theta) = sin(theta)/cos(theta),
tan(theta) = 0 when sin(theta) = 0.
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Solve: sin(theta) = 0
theta =  -pi or pi
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Cheers,
Stan H.
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