取值范围 急急急急!!!!!
来源:学生作业帮 编辑:神马作文网作业帮 分类:数学作业 时间:2024/11/15 18:21:20
若关于x的不等式x²-ax-a≤-3的解集不是空集,则a的取值范围是? 过程写清楚 谢谢!
解题思路: 利用二次函数计算
解题过程:
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最终答案:略
解题过程:
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最终答案:略