名校
解题方法
1 . 已知
,
,
,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad98159fff13440a0823898748eddf09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edaa9bd14b224b0a2235fcb2fae58cf6.png)
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名校
解题方法
2 . 若“
,
”为假命题,则
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb1bbd495bb6477a9115925a994996f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d832b3548638ae5fcb9e970243decec6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
3 . 已知全集
,
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e77768b5597e740873b024dab88f091.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/656f9b8f27f9c0f4d997d842426b358d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f32a2544163d4abe8e32b15d12f8fa5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d19c887002cc13f351b14b929c02d1d.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
4 . 已知
,
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/132bc768c61ab195768601a0be02222a.png)
A.![]() ![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-05-08更新
|
1472次组卷
|
3卷引用:重庆市第一中学校2023-2024学年高二下学期5月月考数学试题
名校
解题方法
5 . 集合
,
,若
,则实数
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0032d459ac4fc3c007f6acda35faf95e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1caba64f9e0a0ecf758eb306f84f26c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
A.![]() | B.0 | C.![]() | D.1 |
您最近一年使用:0次
2024-04-10更新
|
917次组卷
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3卷引用:重庆市渝西中学2023-2024学年高二下学期6月月考数学试题
名校
6 . “
,
”的否定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9490565d4714ffcbadb26fdfca443856.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2024-04-10更新
|
475次组卷
|
2卷引用:重庆市第八中学校2023-2024学年高二下学期第二次月考数学试题
7 . 对于整系数方程
,当
的最高次幂大于等于3时,求解难度较大.我们常采用试根的方法求解:若通过试根,找到方程的一个根
,则
,若
已经可以求解,则问题解决;否则,就对
再一次试根,分解因式,以此类推,直至问题解决.求根的过程中常用到有理根定理:如果整系数方程
有有理根
,其中
、
,
,
,那么
,
.符号说明:对于整数
,
,
表示
,
的最大公约数;
表示
是
的倍数,即
整除
.
(1)过点
作曲线
的切线,借助有理根定理求切点横坐标;
(2)试证明有理根定理;
(3)若整数
,
不是3的倍数,且存在有理数
,使得
,求
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b4d150dc687f9ff11ee3213ec03864e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86eff5761f61a20c240a428f2a7ceda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f86eff5761f61a20c240a428f2a7ceda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efa90ca9cbf408140831d56638ac9e49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bbe0c7e53077a592e5a6dd5f33d4d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a67587f2813cc9ed217fa61b82d83d31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e22570cf8b339a70e8ea0bb696b376.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9040a38c1948ba9c5df2a42d01218c34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9df03ecaa1fdf8814e014245b3dc5523.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b08afab5098dc7af7074d9cb3c246282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423cfd9d544692727b99a5878f7e9a1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(1)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e280d0441a31fdbef3ce192d8d8f8dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d0660d4864c16652a6b27337462b3f1.png)
(2)试证明有理根定理;
(3)若整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a65c4954c0a61e12286e9ce9b7ca2010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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解题方法
8 . 人们很早以前就开始探索高次方程的数值求解问题,牛顿在《流数法》一书中,给出了高次代数方程的一种数值解法—牛顿法,这种求方程根的方法,在科学界已被广泛采用.设实系数一元三次方程:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/031a3d02c9cf003a43d894aa7ebdec85.png)
—①,在复数集C内的根为
,
,
,可以得到,方程①可变为:
,展开得:
—②,比较①②可以得到一元三次方程根与系数关系:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f2ae75fee77fee30aa151798182849.png)
(1)若一元三次方程:
的3个根为
,
,
,求
的值;
(2)若函数
,且
,
,求
的取值范围;
(3)若一元四次方程![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fa96155bd61717e29fbd3b93c3649d4.png)
有4个根为
,
,
,
,仿造上述过程,写出一元四次方程的根与系数的关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/031a3d02c9cf003a43d894aa7ebdec85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e331b91e1e73a0323097b50d428e73e2.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/5c5f02ca9521a8d68480025eaf893e95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e35119b570f422658c3c4df87db6a62d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f2ae75fee77fee30aa151798182849.png)
(1)若一元三次方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa6fa7c65d0c0d3b83de40a89c876a7d.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/019980a9716b372a9b8e119847be1510.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40501cecf34a9f43807a5e4ded9b92cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8add672e3ec923459fa6335e75317ab3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/582da7ec168945ca47881eaccecc82ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(3)若一元四次方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fa96155bd61717e29fbd3b93c3649d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f5bb89c3ad435f1ef59307b174105ed.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)
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解题方法
9 . 已知偶函数
在
上单调递减,则
的大小关系为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4772c835cbe626040ecc4df30e6f0ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/066ac35259ba24ec8ae0d00c4a1edbe4.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-03-15更新
|
703次组卷
|
2卷引用:重庆市渝西中学2023-2024学年高二下学期6月月考数学试题
名校
10 . 命题
的否定为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ac246529da95308a95e65d23f00dd5.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-03-15更新
|
937次组卷
|
3卷引用:重庆市渝西中学2023-2024学年高二下学期6月月考数学试题