摘要: 若不等式对满足.的所有都成立.求的取值范围. 高一数学答案CDCCB CBBAB AB13. 5 14.13/16 15.8/3 16.93三.解答题17.{x?2<x<3}18.d=0或d=3/419.{x?-1/3<x<1}20.(1)bn=2/[n(n+1)] (2)Tn=2n/(n+1)21.P= -622.{x?/2<x</2
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