名校
解题方法
1 . 已知不等式
的解集为
,则以下选项正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5f28031b036e4a37be931d5ff28368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/078d466170d2ed871ecb34534bc7c64c.png)
A.![]() |
B.![]() |
C.函数![]() |
D.![]() ![]() ![]() |
您最近一年使用:0次
名校
2 . 下列命题正确的是( )
A.命题“![]() ![]() ![]() ![]() |
B.如果A是B的必要不充分条件,B是C的充分必要条件,D是C的充分不必要条件,那么A是D的必要不充分条件 |
C.函数![]() ![]() ![]() |
D.已知![]() ![]() ![]() ![]() ![]() |
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2024·全国·模拟预测
解题方法
3 . 已知函数
在区间
上有最大值或最小值,则实数
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddd2f622fc47456c74f1b0fc55a21620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/996ec7256ee8ba6359e9a8cec01aaca4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 函数
的部分图像如图所示.
的解析式;
(2)若
,求
的值;
(3)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ffd082d7fd097092d59b2ae4fde852f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27010021129259f849dc0d0fb42642a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2c46d4adcf012dd489b774aa90734fa.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6b10f0cec1f3becd24f2e486e1422aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2024-04-24更新
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746次组卷
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3卷引用:辽宁省大连市一0三中学2023-2024学年高一下学期4月月考数学试卷
辽宁省大连市一0三中学2023-2024学年高一下学期4月月考数学试卷河南省驻马店市新蔡县第一高级中学2023-2024学年高一下学期5月月考数学试题(已下线)专题02 三角函数的图象与性质-期末考点大串讲(人教B版2019必修第三册)
名校
解题方法
5 . 已知函数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5350c4f4b9198ae54999ca3e3a8fdaba.png)
A.当![]() ![]() |
B.当![]() ![]() |
C.当![]() ![]() |
D.当![]() ![]() |
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2024-04-16更新
|
568次组卷
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3卷引用:甘肃省定西市2023-2024学年高三下学期教学质量统一检测数学试题
2024高三·全国·专题练习
解题方法
6 . 正四棱锥
的外接球半径为R,内切球半径为r,求证:
的最小值为
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dff3606c7bf728b4f539261461cde677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1f190b17530d81d927c358ac84757a4.png)
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解题方法
7 . 已知函数
在区间
上的最大值为M,当实数a,b变化时,M最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8eb458bfa0c73b467e286a0aa6109f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f979b19f87f2c7e171d6061d56cb7bf8.png)
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解题方法
8 . 我们把
(其中
,
)称为一元n次多项式方程.代数基本定理:任何复系数一元
次多项式方程(即
,
,
,…,
为实数)在复数集内至少有一个复数根;由此推得,任何复系数一元
次多项式方程在复数集内有且仅有n个复数根(重根按重数计算).那么我们由代数基本定理可知:任何复系数一元
次多项式在复数集内一定可以分解因式,转化为n个一元一次多项式的积.即
,其中k,
,
,
,
,……,
为方程
的根.进一步可以推出:在实系数范围内(即
,
,
,…,
为实数),方程
的有实数根,则多项式
必可分解因式.例如:观察可知,
是方程
的一个根,则
一定是多项式
的一个因式,即
,由待定系数法可知,
.
(1)解方程:
;
(2)设
,其中
,
,
,
,且
.
(i)分解因式:
;
(ii)记点
是
的图象与直线
在第一象限内离原点最近的交点.求证:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e138b0fc1c40ba1637098eb2a6efd580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffa01f03fb074bff35b35e07047d11b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6368fec0c2c25db7c29b014d60270e97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f7dcce39f3d4dc6b7faf84dc1d0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6368fec0c2c25db7c29b014d60270e97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10b328845a4b1881eee38084d5501224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcde67e0b4461129e0c7e3a12df4634f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edffa0cf823fb77bb7e273db0e014743.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/483fd78fe6ed871ce859f4796ad7779c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943b765718479c160ba61ec5c6f8c5f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e29bf5652f0d4f764c3606efcdb445f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3230af83e2c18650f1de0c88060c0b25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e138b0fc1c40ba1637098eb2a6efd580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f7dcce39f3d4dc6b7faf84dc1d0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e138b0fc1c40ba1637098eb2a6efd580.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf70f45c7f3a63a81001f87863f2c73c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2527822fd5ee6ded770ffc9857c41bff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b924d856924e8cf2b172d5cacffe0610.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2c82aa40a712f2ef6fda7eaeb88a48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7344f58d5f08fab08d4e99baa13fa652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd7126d6d76248996a222631cc9ea93c.png)
(1)解方程:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d58fc8760f5b4612d0f76133d938f4e9.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/536bbd87dd4193314aec2e214e5f05b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f7dcce39f3d4dc6b7faf84dc1d0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1cdb8081eb1b3390b3730c01b9afb59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/653588ca473b428b4a437d6a8ed7a76c.png)
(i)分解因式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e42787c800e5f9c7ac483bea80d8440.png)
(ii)记点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7775aa57ca0e62216f3039ed88dceed0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c520c63104bb6669c3591bd100b10e1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51969fc1a8030cef11cab59267689e89.png)
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9 . 设m是不为0的实数,已知函数
,若函数
有7个零点,则m的取值范围是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3a1635757fa5b2f244cbdd0fb101d5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a2dee36a3295823295b29536383d9aa.png)
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2024-01-31更新
|
323次组卷
|
2卷引用:山东省淄博市2023-2024学年高一上学期期末质量监检测数学试卷
名校
解题方法
10 . 指数函数
的图象如图所示,其中
,则二次函数
的顶点的横坐标的取值范围是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/15/9f1ab0d6-271e-4459-8385-932101a0ecc0.png?resizew=159)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c123852f9fc9efe0e26f969505363a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbce3608f4388d1d46d72c7a7e669e5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de30a0de1754904e6e64217dbbb992a6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/15/9f1ab0d6-271e-4459-8385-932101a0ecc0.png?resizew=159)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-01-26更新
|
149次组卷
|
2卷引用:广东省深圳市深圳实验学校光明部2023-2024学年高一上学期期末考试数学试题