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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.

Respuesta :

DeanR

The tangent is the slope so is undefined when there's no slope, which means a vertical angle, 90 degrees or -90 degrees aka 270 degrees.


In radians that's pi/2 and 3pi/2, choice C



brekv

Answer: it is C

Step-by-step explanation:

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