tan2 A sec2 A (cot2 A – cos2 A) = ?
Ananya Sharma , 9 Years ago
Grade 11
Trigonometry> tan 2 A sec 2 A (cot 2 A – cos 2 A) = ?
1 Answers
Vijay Mukati
Last Activity: 9 Years ago
Ans: = 1. (Hint: Use a2-b2 = (a+b)(a-b) and convert cotA into cosA/sinA)
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