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MATH / Let a, b, c, d be positive real numbers such that a+b+c+d=1. Find the minimum value of (a)/(b+c+d)+(b)/(a+c+d)+(c)/(a+b+d)+(d)/(a+b+c). · Discussion

Discussing Let a, b, c, d be positive real numbers such that a+b+c+d=1. Find the minimum value of (a)/(b+c+d)+(b)/(a+c+d)+(c)/(a+b+d)+(d)/(a+b+c). · MATH

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