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Prove that

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(sinA+sinB)/(sinA-sinB) = tan(A+B/2)/tan(A-B/2)?

trigonometric-identities

asked Apr 27, 2014 in TRIGONOMETRY by anonymous

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1 Answer

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The trigonometric equation is .

L.H.S =

Apply the identities : .

= R.H.S .

answered Apr 28, 2014 by lilly Expert

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