Question

cos² theta upon cot² theta - cos² theta = tan² theta​

Answer 1

Answer:

cos^2theeta/cot^2theeta-cos^2theeta

=cos^2theeta/(cos^2theeta/sin^2theeta-cos^2theeta)

=cos^2theeta.sin^2theeta/cos^2theeta.(1-sin^2theeta)

=sin^2theeta/cos^2theeta

=tan^2theeta(proved)