Quantitative Aptitude Trigonometry

ఏదైనా త్రిభుజం ABCలో, సాధారణ సంజ్ఞామానంతో a + b + c = 2s అయితే, ఆపై \(Sin\left(\frac{A}{2}\right)\) ఎంత?

1
\(\sqrt{\frac{s(s-a)}{bc}}\)
2
\(\sqrt{\frac{(s-b)(s-c)}{s(s-a)}}\)
3
\(\sqrt{\frac{(s-c)(s-a)}{ac}}\)
4
\(\sqrt{\frac{(s-b)(s-c)}{bc}}\)

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