已知关于x的不等式﹣x2+ax+4≥|x+1|+|x﹣1|(a∈R).
(1)当a=1时,求该不等式的解集;
(2)若该不等式在区间[﹣1,1]上恒成立,求实数a的取值范围.
(1)当a=1时,求该不等式的解集;
(2)若该不等式在区间[﹣1,1]上恒成立,求实数a的取值范围.
20-21高一上·北京·阶段练习 查看更多[2]
(已下线)北京市第四中学2020-2021学年高一上学期适应性考试数学试题(已下线)专题2.2 不等式恒成立、能成立问题-《聚能闯关》2021-2022学年高一数学提优闯关训练(人教A版2019必修第一册)
更新时间:2021-10-10 14:58:13
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