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 answer within 5 minutes, this is timed.

Will give are given that xy is parallel to zw. if xz is a transversal that intercepts xy and zw, angle angle alternate interior angles. since xy is parallel to zw, we know that these angles are we also know that angle xvy and angle zvw are , and thus congruent. we can conclude that △xyv ~ △zwv using the similarity theorem.

Evaluate cos2θ for cosθ = square root of 3/2

Find the exact value of each of the following. in each case, show your work and explain the steps you take to find the value. (a) sin 17π/6 (b) tan 13π/4 (c) sec 11π/3