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Prove that

0 votes

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

asked Apr 27, 2014 in TRIGONOMETRY by anonymous

1 Answer

0 votes

The trigonometric equation is image.

L.H.S = image

Apply the identities :  image.

 

image

image

image

image

image

= R.H.S .

answered Apr 28, 2014 by lilly Expert

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