plz Answer. (ᵔᴥᵔ)____________(ᵔᴥᵔ)
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Taking RHS sec⁴A - tan⁴A
(sec²A)² - (tan²A)² a²-b²=(a+b)(a-b)
(sec²A + tan²A)(sec²A - tan²A)
= sec²A + tan²A (sec²A - tan²A = 1)
(1 ÷ cos²A) + (sin²A ÷ cos²A)
sec²A=1÷cos²A & tan²A= sin²A÷cos²A
= (1 + sin²A) ÷ cos²A = LHS
cheese now :)
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