This is an important question from the
Book- ML Aggarwal
Chapter- Trigonometric Identities
We have to prove the following equality
(i) cosec6 A – cot6 A = 3 cot2 A cosec2 A + 1 (ii) sec6 A – tan6 A = 1 + 3 tan2 A + 3 tan4 A
Trigonometric Identities, class 10th, chapter 18th, question no , ICSE board, ML aggarwal..