1 . 函数
的部分图象如图所示.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3c988d875438535244ee2b092a779b.png)
_______ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc11b563e758b1a9c4fa30297d2a2a78.png)
_______ ;若
,且
,则
的值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72871679a21fa3c9007656d712fa02d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3c988d875438535244ee2b092a779b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc11b563e758b1a9c4fa30297d2a2a78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/909cb73c1e33956d68fad7db721f1223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07687d436b2b679c618b7d54ae31765a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450398974b1561ca801e102e16df6789.png)
您最近一年使用:0次
名校
2 . 某高中二年级共有学生425名,其中男生204名,女生221名,为了解该校高二年级学生的身高情况,现从中抽取50名学生测量身高,应当采用______ 的方法求出男女生分别要抽取_____ 、______ 名,然后在此基础上进行简单随机抽样.
您最近一年使用:0次
名校
解题方法
3 . 解关于
的不等式
.(只需结果,不需过程)
可因式分解为_____________________ .
当_________________ 时,解集为_____________________ ;
当_________________ 时,解集为_____________________ ;
当_________________ 时,解集为_____________________ ;
当_________________ 时,解集为_____________________ ;
当_________________ 时,解集为_____________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ffbac75dc3443857f7b626c6aa2c33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/510ce4b3a2844e8defbeda04ebf33e42.png)
当
当
当
当
当
您最近一年使用:0次
4 . 若
,则
的最_____ 值是_________ ,此时![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
_______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd62a09f6dca011e42d5a1298ed99bc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f29d5f376c75c41ae6af0c8a8565449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
您最近一年使用:0次
名校
解题方法
5 . 定义集合
的“长度”是
,其中a,
R.已如集合
,
,且M,N都是集合
的子集,则集合
的“长度”的最小值是_____ ;若
,集合
的“长度”大于
,则n的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3296f5d3fbd7177849bbd7bd30fbd3a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13502d46b8563c54c09b29b20b3006a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd7701d084d2b153bbea08cfbf63413a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2532b1aa9a6b334d7395fc020bf0a6be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2512da0056b913e36a72419c91a5d8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640f4732df2e4b84c5e98b47e37d4e65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c81919684bc4047d376c7e57dc6c8f1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc8032a17aee665217899ed88652375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ae18508906c21d3e1199f231b1a9a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eac97e6740365c85ad857aff85cefbe5.png)
您最近一年使用:0次
2023高二上·江苏·专题练习
6 . 已知点
,圆C的标准方程:
,若点M在圆C上,则a的值为________ ;若点M在圆C的内部,则a的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d25e70d37af93796965efc8d342185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/841631e4039c114b4a9b1ed5c92e8aeb.png)
您最近一年使用:0次
7 . 某兴趣小组为了了解本校学生的课外阅读情况,对学校2000名学生进行了问卷调查,统计整理并绘制了如下两幅统计图.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/8/b4899c42-3c28-4977-8c53-712e08da428b.png?resizew=488)
请根据上述信息解答下列问题:
(1)本校各年级人数扇形统计图中,“九年级”所对应的圆心角的度数为_____________ ;
(2)阅读书籍数量最多的年级是___________ ,这一年级阅读的书籍总量是___________ ;
(3)本校平均书籍阅读量是___________ 本.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/8/b4899c42-3c28-4977-8c53-712e08da428b.png?resizew=488)
请根据上述信息解答下列问题:
(1)本校各年级人数扇形统计图中,“九年级”所对应的圆心角的度数为
(2)阅读书籍数量最多的年级是
(3)本校平均书籍阅读量是
您最近一年使用:0次
8 . 阅读下面题目及其解答过程.
已知函数![]() (1)求证:函数 ![]() (2)求函数 ![]() 解:(1)因为函数 ![]() 所以 ![]() ![]() 又因为 ![]() 所以 ![]() 所以函数 ![]() (2)当 ![]() ![]() 此时函数 ![]() ![]() 当 ![]() ![]() 当 ![]() ![]() 此时函数 ![]() 所以函数 ![]() ![]() |
空格序号 | 选项 | |
① | (A)![]() | (B)![]() |
② | (A)![]() | (B)![]() |
③ | (A)2 | (B)![]() |
④ | (A)![]() | (B)![]() |
⑤ | (A)![]() | (B)![]() |
您最近一年使用:0次
9 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
______
;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
______
;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed1d2f98caea906d26aee92ea178551a.png)
______
;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c839c42ca4cfdd2bbe2f1b5f2666dcf.png)
______
;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
______
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cad135b14c9dcd83eab6618d7694c7b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d0ecd416d6dc3d886b7bf73fc285dde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed1d2f98caea906d26aee92ea178551a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e4b667701a36dc656ee6d274f625809.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c839c42ca4cfdd2bbe2f1b5f2666dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a66becdc090569818d78174d55276b93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
10 . 判断正误(正确的填“正确”,错误的“错误”)
(1)已知等差数列的首项、公差,可求S10.( )
(2)在等差数列中涉及a1,d,n,an,Sn五个量,利用方程思想可以“知三求二” .( )
(3)在等差数列{an}中,若a1=2,a9=10,则S9=45.( )
(4)公式an=Sn-Sn-1成立的条件是n∈N*.( )
(1)已知等差数列的首项、公差,可求S10.
(2)在等差数列中涉及a1,d,n,an,Sn五个量,利用方程思想可以“知三求二” .
(3)在等差数列{an}中,若a1=2,a9=10,则S9=45.
(4)公式an=Sn-Sn-1成立的条件是n∈N*.
您最近一年使用:0次