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यदि alpha तथा beta समीकरण acostheta+bsin...

यदि `alpha` तथा `beta` समीकरण `acostheta+bsintheta=c` के मूल हो, तो निम्न स्तम्भों का सही मिलान कीजिए।
`{:("List-I","List-II"),((A)sinalpha+sinbeta=,(P)(2b)/(a+c)),((B)sin alpha.sin beta=,(Q)(c-a)/(c+a)),((C)"tan"(alpha)/(2)+"tan"(beta)/(2)=,(R)(2bc)/(a^(2)+b^(2))),((D)"tan"(alpha)/(2)."tan"(beta)/(2)=,(S)(c^(2)-a^(2))/(a^(2)+b^(2))):}`

लिखित उत्तर

Verified by Experts

The correct Answer is:
(A) R; (B) S; (C ) P; (D) Q
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