On the unit circle, where 0 less-than pi, when is tangent theta undefined?
Theta = pi and Theta = 2 pi
sine theta = cosine theta
Pi = StartFraction pi Over 2 EndFraction and Pi = StartFraction 3 pi Over 2 EndFraction
sin theta = StartFraction 1 Over cosine theta EndFraction

On the unit circle where 0 lessthan pi when is tangent theta undefined Theta pi and Theta 2 pi sine theta cosine theta Pi StartFraction pi Over 2 EndFraction an class=