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If S+a1+a2+a3++an ,a1 in R^+ for i=1ton...

If `S+a_1+a_2+a_3++a_n ,a_1 in R^+` for `i=1ton ,` then prove that `S/(S-a_1)+S/(S-a_2)++S/(S-a_n)geq(n^2)/(n-1),AAngeq2`

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CENGAGE-INEQUALITIES INVOLVING MEANS -Examples
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