解题方法
1 . 已知p:关于x的方程
至多有一个实数解,
.
(1)若命题p为真命题,求实数a的取值范围;
(2)若p是q的充分不必要条件,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73de0f9467533d375b0a5a81a5642a3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e570581341cefbf013fc22402d9f9c.png)
(1)若命题p为真命题,求实数a的取值范围;
(2)若p是q的充分不必要条件,求实数m的取值范围.
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2 . 已知
;
.
(1)若
为真命题,求实数
的取值范围;
(2)若
为假命题,
为真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4557ee7a56e720c0291346ddbee7366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2262df8346dea433812d168476fd5146.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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解题方法
3 . 若不等式
的解集是
.
(1)解不等式
;
(2)若关于x的一元二次不等式
的解集为R,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce9a91332440ae5eb3495cbc4cbd64b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a70c4154f943ba537fb96b35c438d8f1.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0de9db115080b62ceb32d39f890b6d8f.png)
(2)若关于x的一元二次不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16f477382602f93395adb26f39dbace1.png)
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2021-11-13更新
|
777次组卷
|
7卷引用:广西桂林市奎光中学2022-2023学年高一上学期期中测试数学试题
名校
4 . 求下列不等式的解集:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0b051e1329de07b78b173b7980ea8ea.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0b051e1329de07b78b173b7980ea8ea.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/961630daf51dfe9fe4d34c5caaa889e6.png)
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2021-11-13更新
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4卷引用:广西梧州市黄埔双语实验学校2022-2023学年高二上学期期中(文)数学试题
名校
解题方法
5 . 已知不等式:
.
(1)当
时,求不等式的解集;
(2)当
时,解关于x的不等式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d805fe4581cd24a4ff191f5a16aa0070.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
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2021-10-14更新
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2卷引用:广西桂林市田家炳中学2022-2023学年高一上学期10月月考数学试题
解题方法
6 . 已知全集
,集合
,
,
.
(1)若
,求
;
(2)在①
,②
这两个条件中任选一个,补充到下面问题中,并给出解答.问题:已知
,
:______,若
是
的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860ebb6f76cd3cb9a265dfc233002a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08dc5e8aaa2141ce8a85ce698ba66ecc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c99a82ddeb002d0359953fca3d71f898.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c69694a738b94a1a236669d57f30eb.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)在①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3eb5935678e432e6f1f3180bfdb3175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc11e9183ffccd297df4a1c18618bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e26b38e357c7d985656ba7bb3c794a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2020-12-08更新
|
649次组卷
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4卷引用:广西钦州市第四中学2022-2023学年高一上学期11月期中考试数学试题
广西钦州市第四中学2022-2023学年高一上学期11月期中考试数学试题山东省烟台市2020-2021学年高一上学期期中数学试题(已下线)1.2 充分条件与必要条件提高练-2021-2022学年高二数学同步训练精选新题汇编(人教A版选修2-1)广东省广州英豪学校2020-2021学年高二下学期开学检测数学试题
名校
7 . 设命题
,
.
(1)若
,且
为假,
为真,求实数
的取值范围;
(2)若
是
的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09dcfce74e5c68c59b784602c1e65e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b7c7797aff402595a6a96bb36220bce.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2020-02-09更新
|
364次组卷
|
6卷引用:广西壮族自治区钦州市第四中学2023届高三上学期9月考试数学(文)试题