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Prove that 1 + tan(A)tan(A/2) = tan(A)cot(A/2) - 1 = sec(A)

Prove that


1 + tan(A)tan(A/2) = tan(A)cot(A/2) - 1 = sec(A)

Grade:12

1 Answers

Chetan Mandayam Nayakar
312 Points
9 years ago

just express tan(A),cot(A/2) and sec(A) in terms of tan(A/2) and simplify

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