解题方法
1 . (1)计算:
+
;
(2)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d5fc1576c5f2ce4ce85b0ee7445ce4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9686063aea5fda7bfb57282fa73e32aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d95bc6bf24c7af92e0a2b4ea4b6949a.png)
(2)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f85f58ad52325d9f75d3a6fc45b17b40.png)
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2 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若关于
的不等式
的解集为
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27145091523fc17def346f0e03fdd35d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b624d88827e92e12bc0a8f1067cbe72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d3ebb15a54c4d094ca3fb4c72540ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e38b2d35d4f4e4a93a6326897f72f51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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3 . 不等式
的解集是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2ff93b602d7197914fc060e8e80702.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 解下列不等式:
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d1d265d15dab8960378d3c7bb4b26cd.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef19b8fdb823a5913ccb332d62e89fb8.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a1eaa9cd4b3699df5558b670a61d5a8.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab99ae7cf9e5485730b0928bf01126f9.png)
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2023-12-19更新
|
491次组卷
|
2卷引用:云南省保山市腾冲市第八中学2022-2023学年高一上学期第一次月考数学试卷
解题方法
5 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/553b0b1801620d779137427f2afd92ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b135de571ebed360e336b685fa430dbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4437ed14585a5b64036e9d4289d58b4.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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6 . 设集合
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e422a10c20b21d695cc32543fe2ccadf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7787aad8b95fc01b5291c2586db3d71.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 不等式
对任意实数
恒成立,则实数
的最大值与最小值之和为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb441451881e525eb1953f6034990e91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.3 | B.![]() | C.2 | D.![]() |
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8 . 设集合
,
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8a2e90f59dd9b5784a0a7720a522c0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cf709b155bb923f5de4c0504c7077eb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c1591c50e153637d259ca6eabe84e9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ee603959399ab43f75893098e2b2095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . “
”是“
”的( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23aa3534d6c4c8e10f210e3f535026c4.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次