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[" 8.If in a "Delta ABC,/C=60^(@)" ,then...

[" 8.If in a "Delta ABC,/_C=60^(@)" ,then "(1)/(a+c)+(1)/(b+c)" is equal to "],[[" a."(1)/(a+b+c)," b."(2)/(a+b+c)],[" c."(3)/(a+b+c)," d.None of these "]]

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