Grade 12Trigonometry
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)
1 Answer
Chetan Mandayam Nayakar
just express tan(A),cot(A/2) and sec(A) in terms of tan(A/2) and simplify
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