1 . 已知函数
,
,
,
,集合
只含有一个元素,则实数
的取值范围是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e177f476112a090b450becec8ab7e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851eae00e3369068e33a7e6420483883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6fcbb071cd7f0f8637c2818e92c1eaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e62f1552fc8c1c2be6879ea24983772d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
2 . 已知函数
(a为常数.且
),
,则
( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e3af0dcd37fce1b21b35c9d0368518.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ddfb0d2cb78e7388619a0557bad091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334a2ea1a906d803a281dade05b97515.png)
A.4 | B.6 | C.8 | D.10 |
您最近一年使用:0次
3 . 已知等差数列
的前n项和为
,若
,且
,则
( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13cf11633fb4d3852e380007361f4e3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d61d2fbacb2895b7606f4956f443fc89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a7bf78468ca801ef305ce4f76986da1.png)
A.62 | B.64 | C.66 | D.68 |
您最近一年使用:0次
解题方法
4 . 已知等比数列
首项
,公比
,用
表示该数列前
项之积,则
中最小的是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec27946635ce99f0439621ce87e4317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb08ac8920645c616053c845978bdf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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 |
您最近一年使用:0次
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.![]() |
您最近一年使用:0次
7 . 若关于x的方程
恰有一根在
上,则m的取值范围是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c0d81a23ca4754f23dcf0d4dc8a7f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417ab20883d799aaf311371393fa7d7c.png)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
您最近一年使用:0次
解题方法
8 . 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.![]() |
您最近一年使用:0次
9 . 已知集合
,则实数m的取值范围是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47012c3acff91427d2abff952d6f1c44.png)
A.![]() ![]() | B.![]() | C.![]() ![]() | D.![]() |
您最近一年使用:0次
解题方法
10 . 等差数列
的前
项和为
,若
的值为常数,则下列各数中也是常数的是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa803a9fb1bed24c2e8da72ed7f5e90b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次