(完整版)职高数学第二章不等式习题集附详细标准答案(最新整理)

1、个人收集整理仅供参考学习4 / 4练习 2.1不等式地基本性质2.1 不等式地基本性质习题1、用符号“”或“”填空：6 7（1）7p 7p 7 84 1（2）68- 4 - 131 7317（3） 设a b,则a + 2 b + 2, a -1 b -1, a -1 b +1；（4） 设a 0)参考答案：1、（1）,（2）（3）,（4）,2、 x2 + x +1 x2 -1练习 2.2.1有限区间2.2 区间习题1、已知集合 a = (-2, 7), b = 1, 9),则a b =2、已知集合 a = -2, 3, b = -5,1),则a b =3、已知全集 i = -1,1，集合a=(-

2、1,1)，则ci a =参考答案：1、1, 7)2、-5, 3)3、-1，,1练习 2.2.2无限区间1、已知集合 a = (-, 6), b = 2, +),则a b =2、不等式3x - 7 0 地解集是2、不等式 x2 + 5x - 6 0 地解集是3、不等式(x -1)(x - 3) 0 地解集是4、不等式-3x2 + x + 4 0 地解集是参考答案：1、(-,1) (2, +)3、1, 32、-6,14、 -1, 4 3 2.4 含绝对值地不等式习题练习 2.4.1不等式 x a1、不等式2 x 地解集为2、不等式-2 x + 3 -5 地解集为3、不等式3 x 9 地解集为参考答

3、案：1、-, -22, +2、(-, -4) (4, +)3、(-3, 3)练习 2.4.2不等式 ax + b c1、不等式 x - 2 0 地解集为3、不等式 2x +1 2 地解集为4、不等式 8 - 2x 3 地解集为参考答案：1、(0, 4)2、(-, -3) (3, +)3、 - 3 , 1 4、 5 , 11 2 2 2 2 版权申明本文部分内容，包括文字、图片、以及设计等在网上搜集整理.版权为个人所有this article includes some parts, including text, pictures, and design. copyright is perso

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8、ernal theme. as a professional clerical and teaching position, i understand the importance of continuous learning, life is diligent, nothing can be gained, only continuous learning can achieve better self. only by constantly learning and mastering the latest relevant knowledge, can employees from all walks of life keep up with the pace of enterprise development and innovate to meet the needs of the market. this docu