名校
解题方法
1 . 数学上的符号函数可以返回一个整型变量,用来指出参数的正负号,一般用
来表示,其解析式为
.已知函数
,给出下列结论:
①函数
的最小正周期为
;
②函数
的单调递增区间为
;
③函数
的对称中心为
;
④在
上函数
的零点个数为4.
其中正确结论的序号是____________ .(写出所有正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165d88ea5812bd14de49f5e3436eefad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a3bd54753e4c1a5fc06b414cc44ac8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59d436e42ddbacbbd0af82f0e4750e54.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45d56bab4fdb876bd72d5c9c7a734375.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5760e7c1da0c80f6b8912406b6b75c.png)
④在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aeb66add53686f989fbbb057652cb6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3077b0cfb8a47439afc656af6cc889ad.png)
其中正确结论的序号是
您最近一年使用:0次
解题方法
2 . 给定函数
,用
表示
中的较大者,记
.若函数
的图象与
有3个不同的交点,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75b9bc98b0bf546575c0a6d12495068f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3859cd3de4d6d485df050b0f5321d6c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8fd1e808e015f4cb43d2e3a0529ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65c4dbd640ff1fe70b31770ac5d91e1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b7207506f1f98178c31de985c75e4c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46111e4d12c21798aa213c0d7804c2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
3 . 已知函数
,
,其中
.
①若函数
无零点,则
的一个取值为_______ ;
②若函数
有4个零点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ade331851befdd556917c4a9de446a38.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9afa10cef49beaf703cde104d11537ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039f9392112593405d4c0f1bea7d31f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
①若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
②若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31571aa1eaac5653a866cefd7fccf575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ade331851befdd556917c4a9de446a38.png)
您最近一年使用:0次
解题方法
4 . 已知函数
为偶函数,满足
,且
时,
,若关于
的方程
有两解,则
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af95e4cded0c3545549d5b55b0d1375e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f2222b10f3189590dfa35385970ce40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45e42ad2b8aa847687969fde4ba17859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1d2d6e783f73d37c335bf85b2bb791b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024·全国·模拟预测
5 . 已知函数
,若方程
有7个不同的实数根,则实数
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b49de18996f7bfa04424a34251417af2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24ee772d9cbb66dc987712a395544446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024·全国·模拟预测
6 . 已知函数
则函数
有__________ 个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a88d2a826925f79d84c522c01766730e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3adb5f3ee24dcdde27d336bd9cb7d6eb.png)
您最近一年使用:0次
2024·全国·模拟预测
解题方法
7 . 已知函数
,若关于
的方程
有3个不相等的实数根,则
的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e54dbc81c3d990460bf05a5cf5772e2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eb2e46f49adba6036e2624639a1b966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2024·全国·模拟预测
解题方法
8 . 已知函数
,则
与
的图象交点的纵坐标之和为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/055b54f9303da1b646d763431dab1c1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
您最近一年使用:0次
9 . 设函数
,若
有四个实数根
,
,
,
,且
,则
的取值范围__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c644290b78dbdda8ec48b137f9c5880.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c342d52fc26cc550a45b80756903bee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365b38a7689a8eede6820cd6f1fe952b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3604274ad6707a906eba371a9e884144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/961ccb40cc85faaed624b76eee6dad19.png)
您最近一年使用:0次
名校
解题方法
10 . 已知函数
的定义域为
的奇函数,
,对任意两个不等的正实数
都有
,则不等式
的解集为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fceb969de98e32f56f9610c213823489.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a104661cd335caffb9fa6cfe321aa8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64dc24c95c35a24e14c6b7d44ef4138f.png)
您最近一年使用:0次
2024-03-12更新
|
601次组卷
|
3卷引用:四川省绵阳市三台中学校2024届高三下学期三诊模拟数学(文)试题