x^2-2x-3 -1 xa+1
要使其恒成立,则有
3
若满足不等式x2-2x-3＜0的x使不等式x2-2ax+（a2-1）＞0恒成立,求实数a的取值范围.
若满足不等式x2-2x-3＜0的x使不等式x2-2ax+（a2-1）＞0恒成立,求实数a的取值范围.
高一不等式题,
高一不等式题,
数学人气：807 ℃时间：2019-10-17 07:36:39
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