Question

Show that the equation 2tan^2 theta cos theta= 3 can be written in the form 2cos^2 theta + 3 cos theta=0

Answer 1

\[\tan \theta = \frac{ \sin \theta }{ \cos \theta }\]Use substitution
I think you have an error in your problem.
I end up with \[2\cos ^{2}\theta+3\cos \theta = 2\]