名校
1 . 判断正误(填正确或错误)
(1)3,3.1,3.14,3.142,…可以写出递推公式.( )
(2)2,4,6,8,10,⋯为正偶数组成的数列,其递推公式可以写成:
.( )
(1)3,3.1,3.14,3.142,…可以写出递推公式.
(2)2,4,6,8,10,⋯为正偶数组成的数列,其递推公式可以写成:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2385ab12ea1a491b4c7edd6488ba56.png)
您最近一年使用:0次
2024-01-11更新
|
98次组卷
|
2卷引用:黑龙江省牡丹江第二高级中学2023-2024学年高二上学期期末数学模拟试卷
2 . 判断正误(正确的填“正确”,错误的填“错误”)
(1)
是一元二次不等式.( )
(2)若方程
没有实数根,则不等式
的解集为
.( )
(3)设二次方程
的两实数根为
,则一元二次不等式
的解集不可能为
.( )
(4)
的解集可能是
.( )
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a8eb9e90617834d53b7755e518ce2eb.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24527361966ba6ded458eed6bcee59df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a42c345443ea8da6d1b73b4035e2566d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(3)设二次方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7380b4cd6434b4b458d711826e49d23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a42c345443ea8da6d1b73b4035e2566d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2227e27e8d34198f022bf7024503cb0a.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a42c345443ea8da6d1b73b4035e2566d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/574bdac28b1dcbf03f0fb903e8d0b49a.png)
您最近一年使用:0次
3 . 判断正误(正确的填“正确”,错误的填“错误”)
(1)两个不等式
与
成立的条件是相同的.( )
(2)当
时,
.( )
(3)当
时,
.( )
(4)函数
的最小值是2.( )
(1)两个不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48fe5d9cbe4f83926f5c21912df67a2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/689f982af451283289255c87593ec338.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/759c09917e5728d75bf5cfdb5b4a807f.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3827ed33eeca93ecd65f9633de230d.png)
(4)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1305b9abebd7bef3171486df157286b3.png)
您最近一年使用:0次
解题方法
4 . 判断正误(正确的写“正确”,错误的写“错误”)
(1)若两个正数的和为定值,则它们的积有最大值.( )
(2)x∈R,则
的最小值是2.( )
(3)若x>0,则函数
的最小值等于
.( )
(4)已知函数
存在最大值,若不等式
恒成立,则
.( )
(1)若两个正数的和为定值,则它们的积有最大值.
(2)x∈R,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e60c0b7c58c3c45581dbca3e6dca34f1.png)
(3)若x>0,则函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01798070ecd1c824b0a8b8566625606e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143aca2ea7b880e70eb3ecaedc5f9c50.png)
(4)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbb1fa6b43e76575833ff732190cda49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86e6b93427826fcbb48f8cdfc54fcb17.png)
您最近一年使用:0次
解题方法
5 . 判断正误(正确的填“正确”,错误的填“错误”)
(1)对任意
,
均成立.( )
(2)若
,则
.( )
(3)
异号时,
.( )
(4)当
时,
的最小值为2.( )
(1)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bcce6eb3b38322059b6051ce600ee8b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dfa55731858aaed472d94ba55af2cc4.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37006891004d02050e7c57db20af3981.png)
(4)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27f27cbb8185c1974d715ff95f8801c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13f40c24c64bbb0645fcf585f4e66872.png)
您最近一年使用:0次
6 . 判断正误(正确的填“正确”,错误的填“错误”)
(1)实数a不大于
,用不等式表示为
.( )
(2)不等式
的含义是指x不小于2.( )
(3)若
.( )
(4)若
,则
.( )
(1)实数a不大于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/006dd721f6e19ee105cf6e3a10b69c02.png)
(2)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27f27cbb8185c1974d715ff95f8801c.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/239075b258c25134fc9e3940207ba85f.png)
(4)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a534643d79364509b3e14b17f45750f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa8950fa963eedb948d6a57871478cc.png)
您最近一年使用:0次
解题方法
7 . 判断正误(正确的打正确,错误的打错误)
(1)对任意
均成立.( )
(2)若
且
,则
.( )
(3)若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3827ed33eeca93ecd65f9633de230d.png)
( )
(4)
同号时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa23408bcc9f6200f22a310e5f2569a.png)
( )
(1)对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34b2999298af989cf5cebd29c8aab27f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2958030ec9d7543dda1f529593a915e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1ec5317c2642bca22a5814e21494acd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2684b72f9f38f5046c8ecd4280b7b14b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3827ed33eeca93ecd65f9633de230d.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aa23408bcc9f6200f22a310e5f2569a.png)
您最近一年使用:0次
8 . 判断正误(正确的写正确错误的写错误)
(1)不等式
表示一个一元二次不等式.( )
(2)不论实数
取什么值,不等式
的解集一定与相应方程
的解有关.( )
(3)设二次方程
的两解为
,则一元二次不等式
的解集不可能为
.( )
(4)不等式
或
的解集为空集,则函数
无零点.( )
(1)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d2d3c75ecc19143fa59f19017df0a2.png)
(2)不论实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95f3fa710253c107b6e8fb458108b0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13fa32c1e926f40a0722d106563777ef.png)
(3)设二次方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13fa32c1e926f40a0722d106563777ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5f28031b036e4a37be931d5ff28368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2227e27e8d34198f022bf7024503cb0a.png)
(4)不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59ec172dcc47a1f186036dea10a7005a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/056dc6c9807927e8353c197c868b288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
您最近一年使用:0次
9 . 不等式
的解集是
.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33f1fd2e4df62d7d587309ea09aff81c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a837165ca03f9e4ea8964979c95e3bb.png)
您最近一年使用:0次
10 . 不等式
的解集是R.( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/547adc121c442b3bb9189e6df5ee4018.png)
您最近一年使用:0次