trolllol12321 trolllol12321 18-07-2018 Mathematics contestada On the unit circle, where 0 < theta < or equal to 2pi, when is tan theta undefined? A. Theta=pi and theta=2pi B. sin theta = cos theta C. theta = pi/2 and theta=3pi/2 D. sin theta = 1/cos theta Please answer within 5 minutes, this is timed.