解题方法
1 . 函数
在区间
上是减函数,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39bae0af6da79f8658717cce3c66cff5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7753e58acaf2ecba5bd7b6861c2e71fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
2 . 已知
是奇函数,且在
内是减函数,又
,则
的解集是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196be101149acfb6a6c4ceca7fc96828.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86213096e8b50debedaa87181d7085cc.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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解题方法
3 . 已知函数
满足下列条件:
(1)当
时,
,且
;
(2)当
时,
;
(3)在
上的最小值为0.
求最大的
,使得存在
,只要
,就有
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7620b8fd2fe76cdcfceee953e1492e90.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd089822beae382e173954e7b2f5b82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f028e597d34316db2c4c993fc72ff32d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff133c17652425c22f0b367e002797df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fda178cf86d2baff95be7e655f020fc3.png)
(3)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
求最大的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c884ce1e9436d39f34f6d3116cb2a140.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf039c46a25e331446c6ee1e9af3c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08696f29924fad88f81c45c11149917c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfa5db87f46602bdba3df300ffe16b0a.png)
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4 . 函数
满足
,则常数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b59d46d237d30bf862090469c98da9f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/535fbd4834ea07cadae1dcc39bb83913.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4e9bb42376c12d7d21702ae8062b25a.png)
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5 . 非空集合
,满足条件:若
,则
.这样的M有( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6c86d2a3bf9112fd5a64185cf1065c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c994bd56f31235e577dfd37121e32dcb.png)
A.13个 | B.14个 | C.15个 | D.16个 |
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6 . 已知集合
,则
( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e885f1f0852dae19481cb9ccdaee02de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 整数m,n满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705d0cd198f423d1a7d6b9a7999c18ee.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a24aa90aa2d2ad600a5fce8ea1a88dd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/705d0cd198f423d1a7d6b9a7999c18ee.png)
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8 . 记不超过x的最大整数为
,若集合
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a72ef9665654c618812d35f99535549d.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe65fd88f6f84c855b9f564d50eebc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a72ef9665654c618812d35f99535549d.png)
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解题方法
9 . 定义在
上的任意函数
都可以表示成一个奇函数
与一个偶函数
之和,如果
,那么( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2978e4c83d696c47293b5a37768e1696.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
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解题方法
10 . 定义在整数集上的函数
满足:
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb4138e3a956d50c217cdd4799ff1edd.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11aa7165f452c8e8a84dbcc183b65f48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb4138e3a956d50c217cdd4799ff1edd.png)
您最近一年使用:0次