1 . 已知函数
(
,
,m为常数)的最小正周期为
,且函数
在区间
上有两个零点
.
(1)求实数m的取值范围;
(2)用含m的式子表示
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33e735f0a72d1df6e39e2c854cd148cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9fdc1f8ed0ae44b54a9a2a3aca2db4.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/c4e288596fa3811dd2c17bded60e82e7.png)
(1)求实数m的取值范围;
(2)用含m的式子表示
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22d521f8d021b20757d7a68107fcef1d.png)
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2 . 设集合
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b67f145dd6139be0ae31693c7dc15b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/565e930eaddafa9b6be8bc1dacba991b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-01-18更新
|
265次组卷
|
3卷引用:2020届湖北省十堰市高三年级元月调研考试理科数学试题
3 . 若定义在R上函数
的图象关于图象上点(1,0)对称,f(x)对任意的实数x都有
且f(3)=0,则函数y=f(x)在区间
上的零点个数最少有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be344d1925b25e44f3f8b34d2c193ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dc3b336f4ee609cb807a179dbe98843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8327e028e16fa8fb4dd47bba470dacf5.png)
A.2020个 | B.1768个 | C.1515个 | D.1514个 |
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解题方法
4 . 若
,
,
,则有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa935130aa951ec1f3e22ea7690bc8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b3d8ea7abc86d12f47f30ddca3afec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b2744096327ba9849d2af6c2b1fc1d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9-10高一下·湖北孝感·期末
名校
5 .
中,如果
,则
的形状是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f820cd53247643bb3a314cc530ec8a61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
A.等边三角形 | B.直角三角形 | C.等腰三角形 | D.等腰直角三角形 |
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2019-01-30更新
|
967次组卷
|
4卷引用:2010年孝感高一下学期期末考试数学卷
名校
解题方法
6 . 设命题
,
;命题
当
时,
解集为
,下列命题为真命题的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa57908ed892653680467a36efe1b38f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf8de41bd48f0c7b39075b665aacea09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a3f05e83c7082ccb6fab8b0cbe1c480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b26c416363ab2a9ed000b429540db55e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
7 . 设集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed8f28eed0ed3a3bc10f25393bda8db7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf4948053d342b49495fcad614b0acc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2020-11-03更新
|
219次组卷
|
5卷引用:湖北省恩施州2019-2020学年高二下学期期末数学试题
名校
8 . 已知A=log23•log316,B=10sin210°,若不等式Acos2x-3mcosx+B≤0对任意的x∈R都成立,求实数m的取值范围.
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9 . 已知集合
,
.
(1)求
;
(2)当
时,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad87d619dfa50defc2f7895cf7ddbbf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3954735e5f09f6505c3f6c9362cd15ca.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31333463f002b68938ee903c9dfbe125.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0e0115bfad3bb4203f2910dd447fd11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0ca09f5aa587fb8e9f825cf0f211072.png)
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名校
10 . 已知函数
,g(x)=cosx.
(1)已知
,求tan(α+β);
(2)解不等式f(x)≥0;
(3)设h(x)=f(x)g(x),试判断h(x)的奇偶性,并用定义证明你的判断.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2dfe1cffe76ec3db8f1dd69c9d55b14.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29980375260512efcf52aab12ef6881e.png)
(2)解不等式f(x)≥0;
(3)设h(x)=f(x)g(x),试判断h(x)的奇偶性,并用定义证明你的判断.
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