Question

Prove that:
(sec²A-1) cot²A=1​

Answer 1

Answer:

∴ sec²A - 1 = tan²A ). By substituting this value, ⇒ ( tan²A ) cot²A = 1 ⇒ ( 1 / cot²A ) cot²A = 1 ∴ 1 = 1. Proved.