1.1+1/3+1/3^2+1/3^3+……+1/3^99+1/3^1002.(7^2+1)/(7^2-1)+(9^2+1)/(9^2-1)+(11^2+1)/(11^2-1)+……+(99^2+1)/(99^2-1)3.(1/2+1/3+1/4+1/5+……+1/60)+(2/3+2/4+2/5+……+2/60)+ (3/4+3/5+3/6+……+3/60)+……+(58/59+58/60)+59/602.3题
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