Evaluate cos2 θ tan2 θ + tan2 θ sin2 θ in terms of tan θ.

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.

Aline that intersects one of two parallel lines intersects the other also always sometimes never

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2