Prove that: cos^2〖θ-sin^2θ 〗/((1-tan^2〖θ)(sin〖θ)〗 〗 )=cot〖θ∙cosθ 〗
You asked:
Prove or disprove that the equation $\frac{\cos^{2}{\left(θ - \sin^{2}{\left(θ \right)} \right)}}{1 - \tan^{2}{\left(θ \right)} \sin{\left(θ \right)}} = \cot{\left(θ \cos{\left(θ \right)} \right)}$ is an identity.