FIND THE VALUE OF: Sin A/2,Cos A/2 & Tan A/2.

Asked by  | 8th Mar, 2012, 06:51: PM

Expert Answer:

sinA/2 = root { (1 - cosA)/2 }
cosA/2 = root { (1 + cosA)/2 }
tanA/2 = root { (1 - cosA)/(1 + cosA) }

Answered by  | 8th Mar, 2012, 08:56: PM

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