Related Questions
Prove the following identities, where the angles involved are acute angles for which the trigonometric ratios are defined:
tan2 θ - sin2 θ = tan2 θ sin2 θ
Prove the following identities, where the angles involved are acute angles for which the trigonometric ratios are defined:
cosec4 θ - cosec2 θ = cot4 θ + cot2 θ
Prove the following identities, where the angles involved are acute angles for which the trigonometric ratios are defined:
2 sec2 θ - sec4 θ - 2 cosec2 θ + cosec4 θ = cot4 θ - tan4 θ.