解题方法
1 . (1)已知全集
,集合
,集合
.求
;
(2)解关于
的不等式
;
(3)解不等式组:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0dc8098ad6f31bdd87771ca9cfa33a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37893eadbd288cc52be6de2b25b1434.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a05fd114fd9fcd8e0b95d231ae4f60b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b99ce9318621a5aa2ac283bc2231f069.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82be8d8a7e1cbddeafcbf0055e8730ea.png)
(3)解不等式组:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/977b718e75027f54cd1f1fedab2547b6.png)
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解题方法
2 . 设全集
.
(1)解关于
的不等式
;
(2)记
为(1)中不等式的解集,
为不等式组
的整数解集,若
恰有三个元素,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
(1)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de90ac59bcff9f91525b40d2018f0c6f.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fbc1d281c186b0ac29ea9c92a1b24c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00c5e00c0716742d29b5814b83e07528.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
3 . 已知集合
.
(1)当
时,关于
的不等式组
没有实数解,求实数
的取值范围;
(2)若
,且关于
的不等式
的解集为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d57c293ebc3b99cb7aff9b3e585dcdc7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2bc9551406faf1c4f1e444dbd66237b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2454a6dc18fdf2cde16cb1b096ea8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/811625bead5bd88970550be98125aa3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5258a748e0915550223745b9d4aa68f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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名校
解题方法
4 . (1)解不等式
.
(2)设
表示
的解集;
表示不等式
对任意
恒成立的
的集合,求
;
(3)设关于
的不等式
的解集为
,试探究是否存在自然数
,使得不等式
与
的解都属于
,若不存在,说明理由.若存在,请求满足条件的
的所有的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/160f68000b902eef7c47c95f055c2d04.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dee96a17986a05fb4d8afac6ed25af10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa70964576558e912ac311efe800ebe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4afabfd5b4885311f8d9a4bcf791b71.png)
(3)设关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/789bcc64778a85418ac54d41d1798a65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/700fa4dfbe1d291042d435778db55f5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecc21ccecbbb5acfff1ab104b6b8265f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
5 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/478d6d7426ff2d08284e691448585152.png)
(1)当
时,解不等式
;
(2)解关于
的不等式
;
(3)已知
,当
时,若对任意的
,总存在
,使
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/478d6d7426ff2d08284e691448585152.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb7479f1080f30fbec99ef1b40162aa0.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4801e06090648bd73b1782d8156d4ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0496d81c441e6cfa9c26ff7e83746eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a32fef274f43f90a37c57c46f2c670.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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6 . 已知不等式
的解是
,设
,
(注意分母)
(1)求a,b的值;
(2)求
和
(建议:先作数轴,再计算)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99cf6cc318632bf552d30b25f4d28b8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f2333e2a05532b97e14b912e331ec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3c937a8da260ce7dfc6fd1fc9030da6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2301d7708a60ebf634af76bf123e0c.png)
(1)求a,b的值;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff39d1e9ee46fb95295cd5ab593bf14e.png)
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名校
7 . 已知集合
,
.
(1)若
,且
,求实数
及
的值;
(2)在(1)的条件下,若关于
的不等式组
没有实数解,求实数
的取值范围;
(3)若
,且关于
的不等式;
的解集为
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/553b0b1801620d779137427f2afd92ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56de6e256e907f617382c5d3cd3f330a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95321d0e551daa25104d32157249c23d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4586a15d28ea5f5b1597a62522c758e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(2)在(1)的条件下,若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/081e9da170bcdf51d664ac28618021e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62eafa29e9378c3cfebf1c12b5aeac73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5258a748e0915550223745b9d4aa68f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2020-10-27更新
|
2526次组卷
|
10卷引用:上海奉贤区致远高级中学2020-2021学年高一上学期10月月考数学试题
上海奉贤区致远高级中学2020-2021学年高一上学期10月月考数学试题(已下线)第02讲 不等式-【提高班精讲课】2021-2022学年高一数学重点专题18讲(沪教版2020必修第一册,上海专用)辽宁省辽宁师范大学附属中学2021-2022学年高一上学期10月月考数学试题北师大版(2019) 必修第一册 名校名师卷 第四单元 一元二次函数与一元二次不等式2023版 苏教版(2019) 必修第一册 名校名师卷 第四单元 从函数观点看一元二次方程和一元二次不等式2023版 湘教版(2019) 必修第一册 名师精选卷 第四单元 从函数观点看一元二次方程、一元二次不等式上海市奉贤区致远高级中学2022-2023学年高一上学期10月月考数学试题(已下线)3.3.2.2 从函数观点看一元二次不等式-2022-2023学年高一数学《基础·重点·难点 》全面题型高分突破(苏教版2019必修第一册)(已下线)第1章 集合与常用逻辑用语-【优化数学】单元测试能力卷(人教B版2019)(已下线)FHgkyldyjsx01
8 . 已知方程组
的解集为
.
(1)若方程组的一个解为
,求
的值;
(2)若
时,求
;
(3)当
时,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb834a8b167f55c254e20d8f1a698be3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf04b4991cc8ef8ffb9d8ef31d54ba20.png)
(1)若方程组的一个解为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0d7fbcc396c7b646c31f60e32d9e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6abf3f9b0ebcdc47a028c781b7edb9.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a7bb2271f0c1ae6f267beff842fcc44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88edfcabd49166a6dae74eecbdafd35f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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9 . 甲、乙两位同学在求关于x,y的方程组
的解时,甲因看错了m,解得
乙因看错了n,解得
.
(1)求m,n的值;
(2)求方程组
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a378a0db85c6708a2ed1f7838858872d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e92e3e44ed57f273d444570856be55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f226f4fd1bf897c20c8e8597957f3575.png)
(1)求m,n的值;
(2)求方程组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a378a0db85c6708a2ed1f7838858872d.png)
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名校
10 . 甲乙两位同学求关于
的方程组
的解集
时,甲因看错了
,解得
;乙因看错了
,解得
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30800bcb030cf5ee97d0e21fbbe8c368.png)
___________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22d7c214d9685da7be80319ed80d8df.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7822f361618da0965955d7bc25c4b49c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46102fb6ed356e25bae44efe2139ee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/331c214721617d58a0c4a8178cfb7b90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0364e6be73d9d631bce3d194b0b43e6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30800bcb030cf5ee97d0e21fbbe8c368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22d7c214d9685da7be80319ed80d8df.png)
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