1 . 定义在R上的单调函数
满足:
.
(1)求证:
是奇函数;
(2)若
在
上有零点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd384d86840b7b158af41f56fe29c7d1.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be798dd7fdf9214c213c7dbffe7a0108.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbfe8e7fb253685e0e50bae0c5482314.png)
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名校
2 . 已知函数
,其中
,
,
为
的零点:且
恒成立,
在区间
上有最小值无最大值,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a067e86ae162185a04bdf862b40cd255.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a298eef3b62cf7d8fc09fe308ad4c714.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ee87c2238af98e17416a22aca19ee5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7386a3850b6b4abccae40e9fd52bdb82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad4536d2d09408ac2d08bb0830524c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.9 | B.11 | C.13 | D.15 |
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3 . 已知函数
.
(1)求
的最小正周期
和
上的单调增区间:
(2)若
对任意
和任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5560c6a3584b82cc41b8c7e3ebc1b26e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1613d377a07850c72cbec354b7a3000f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2a595db95fd17482710b4372df7b808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320db668117654d39faa0c8ce830e9ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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4 . 已知函数
的定义域为
,其中
,若函数的最大值为1,最小值为-5,则a+b=__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a385eb171ce283f1b0ffb89a4fa1499d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b817ed205c9389bc603dc101e727dcd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
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5 . 已知函数
(
).
(1)若
,函数
的最大值为
,最小值为
,求
的值;
(2)当
时,函数
的最大值为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dafb44b22644dbd6aafcf2a962b9a1f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edbd40e04e2a943051fa83d6e511add.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e60d75ce0ee45928a17f5e886df017.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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6 . 函数
在区间
内有最大值无最小值,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbdff2b8678f8fe2f689be1c3d00aa85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc823a695e236a6fbace76871bb4f7f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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7 . 设函数
的最大值为
,最小值为
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60f2482c46a1508733e5b96ffe3aae18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/760f804646698060703c5458ff5637c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a675b062ab139d92504d1b9d8667f12e.png)
A.存在实数![]() ![]() |
B.存在实数![]() ![]() |
C.对任意实数![]() ![]() |
D.对任意实数![]() ![]() |
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2019-12-12更新
|
205次组卷
|
2卷引用:江西省景德镇2019-2020学年高三第一次质检试题数学文科试题
名校
8 . 已知函数
对任意
都有
,若
在
上的值域为
,则实数
的取值范围为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/456372eb1a2af304b0ee027413e33a21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d200a7afe1e011713e14886a6887e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a9860c4fa2e7b1d00ae88c415d34fa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1613d377a07850c72cbec354b7a3000f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b60350ce98d7c382a4292c431cab52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2019-10-05更新
|
1719次组卷
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4卷引用:江西省奉新县第一中学2020届高三上学期第二次月考数学(文)试题
名校
9 . 已知函数
,
,
,总
,使得
成立,则实数
的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7884fc073e25c4d19ef4fb3389e144b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9041a89b250f1c5fb705c004ec04f849.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9cbf11c3bc8462179caebf3eec0b32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3000aaae92aa591a4d768676c56ab3d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9311fc271ac513a2b5acf5c238808665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2019-06-16更新
|
2041次组卷
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4卷引用:山西省山西大学附属中学2019-2020学年高二下学期5月月考数学(理)试题
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10 . 已知函数
.
(1)若对任意
,都有
成立,求
的取值范围;
(2)若先将
的图象上每个点纵坐标不变,横坐标变为原来的2倍,然后再向左平移
个单位得到函数
的图象,求函数
在区间
内的所有零点之和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27d8afff0d609445f0153122006403ff.png)
(1)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cc56ec302f08c279d7be7a3bfe29faf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5931095eb29d9d6b55ed9fa32a4ef1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若先将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a9d2708756204373e96fc7d695a52a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb3a9f8a2de5a9ffdb5268b342f385f6.png)
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2019-06-05更新
|
1329次组卷
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4卷引用:江西省宜春市上高县第二中学2019-2020学年高三上学期11月月考数学(理)试题