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Ask iit jee aieee pet cbse icse state board community Discussion Response Post to: prove this
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[Post New]19 Mar 2008 15:04:02 IST
    Subject: Re:prove this
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layman (148)

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Olaaa!! Perrrfect answer. 24  [38 rates]
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Let the two vectors be a and b on a unit circle.
a=cos A i + sin A j
b=cos B i + sin B j
|axb|=sin A.cos B+cos A.sin B = |a|.|b|.sin(A+B)
=>sin(A+B) = sin A.cos B+cos A.sin B



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