CBSE Class 11-science Answered
FIND THE VALUE OF:
Sin A/2,Cos A/2 & Tan A/2.
Asked by | 08 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 | 08 Mar, 2012, 08:56: PM
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