名校
解题方法
1 . 已知函数
是定义在
上的奇函数.
(1)求实数
,
的值:
(2)试判断函数
的单调性并用单调性的定义证明;
(3)若对任意的
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c848059c46228fdab5d637bc8b1aa99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)试判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fad48c242b2320092f2071921696bad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9904b1d9ad133124008f227fadd8992.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2023-12-24更新
|
975次组卷
|
2卷引用:浙江省温州市鹿城区温州人文高级中学2023-2024学年高一上学期12月月考数学试题
名校
解题方法
2 . 函数
的部分图象如图所示,则下列说法中正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3ca685b30238e3309f4c1135b2719a.png)
A.![]() ![]() |
B.![]() ![]() |
C.![]() ![]() |
D.若方程![]() ![]() ![]() |
您最近一年使用:0次
2023-12-24更新
|
1336次组卷
|
5卷引用:浙江省温州市鹿城区温州人文高级中学2023-2024学年高一上学期12月月考数学试题
浙江省温州市鹿城区温州人文高级中学2023-2024学年高一上学期12月月考数学试题2023新东方高一上期末考数学02(已下线)专题09 三角函数图象变换(2)-【寒假自学课】(苏教版2019)(已下线)专题05 三角函数5-2024年高一数学寒假作业单元合订本重庆市朝阳中学2023-2024学年高一下学期5月月考数学试题
解题方法
3 . 如图,四棱锥
中,
,
,
是正三角形,
,平面
平面
,若点F是
所在平面内的动点,且满足
,点E是棱PC(包含端点)上的动点,则当直线AE与CD所成角取最小值时,线段EF的长度不可能为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/eb89aa39-10bd-431f-9c7e-3b7f8d6716e5.png?resizew=161)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f79863ffcfa63117ca6741b20a48e69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6045266f6db39e41b7abde762d9e9a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac451db3443cabb204f96c31fd4a02e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d9ef979b9f27a28cbda6923e888ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d077f6da8b2c00b152d4679aa2ed7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a675310c8ba418e5a59beb7317e21e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b31cb7653522fe84e22e7c5ee117e8a6.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/23/eb89aa39-10bd-431f-9c7e-3b7f8d6716e5.png?resizew=161)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
4 . 已知函数
是奇函数,不等式组
的解集为
,且
,
满足
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0945bdc83f8e4c60d3f024ed2dc8f662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81080d1142aa16434cdde43d23937033.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f803a468e5d66004e57372a5bf2c5e1b.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/6270bb08b90f72d5671ab8225f356c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a116cd52343795041a8543759ed9fa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
您最近一年使用:0次
2023-12-23更新
|
378次组卷
|
2卷引用:浙江省丽水市三校联考2023-2024学年高一上学期12月月考数学试题
名校
解题方法
5 . 如图,双曲线
的离心率为
,实轴长为
,
,
分别为双曲线的左右焦点,过右焦点
的直线与双曲线右支交于A,B两点,其中点A在第一象限.连接
与双曲线左支交于点C,连接
分别与x,y轴交于D,E两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/22/daff0565-e480-42a4-90c9-4cdd03dc601b.png?resizew=171)
(1)求该双曲线的标准方程;
(2)求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18483c9c195ecd922772527fa85c0fcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/22/daff0565-e480-42a4-90c9-4cdd03dc601b.png?resizew=171)
(1)求该双曲线的标准方程;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25c28359f8d8da9eaf4672a6cf8ae4f.png)
您最近一年使用:0次
2023-12-22更新
|
370次组卷
|
2卷引用:浙江省北斗星盟2023-2024学年高二上学期12月阶段性联考数学试题
解题方法
6 . 设椭圆C:
的左、右焦点分别为
、
,椭圆C的右顶点为A,点P、Q都在椭圆C上且P、Q关于原点对称,直线
与椭圆C相交于点M、N,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d71f015144ffaf1faec94a259b4a06.png)
A.四边形![]() |
B.![]() |
C.直线PA,QA的斜率之积为定值![]() |
D.当![]() ![]() ![]() |
您最近一年使用:0次
解题方法
7 . 已知定义在
上的函数
,其中函数
满足
且在
上单调递减,函数
满足
且在
上单调递减,设函数
,则对任意
,均有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8fd1e808e015f4cb43d2e3a0529ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3abec09d3181d4ec3b20bf169242696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/113c2a2712c6394ed86024edc460d70b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/189b2da6c420bf8f8900002d14f65f72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f5d78999c004da853b9ce5903fd2e20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
8 . 设
,若满足
,则称
比
更接近
.
(1)设
比
更接近0,求
的取值范围;
(2)判断“
”是“
比
更接近
”的什么条件,并说明理由;
(3)设
且
,试判断
与
哪一个更接近
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86da09b21445e4550a9859bd2e8a09ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d3c002f2624d5e8ec59766c609fb74a.png)
![](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/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da4fcad0fbcfd1c4811d5f84a1727119.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a4780b98f26393e42a9c06b472e332.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)判断“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/473c6d2b6c01a2490e4bb1cf2dad9edc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783bd0669daf92fdcda36ca85570beda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
您最近一年使用:0次
名校
9 . “双11”期间,某商场进行如下的优惠促销活动:
优惠方案1:一次购买商品的价格,每满60元立减5元;
优惠方案2:在优惠1之后,再每满400元立减40元.
例如,一次购买商品的价格为150元,则实际支付额
=140元,其中[x]表示不大于x的最大整数.又如,一次购买商品的价格为810元,则实际支付额
13
40=705元.
(1)小芳计划在该商场购买两件价格分别是250元和650元的商品,她是分两次支付好,还是一次支付好?请说明理由;
(2)已知某商品是小芳常用必需品,其价格为30元/件,小芳趁商场促销,想多购买几件该商品,其预算不超过500元,试求她应购买多少件该商品,才能使其平均价格最低?最低平均价格是多少?
优惠方案1:一次购买商品的价格,每满60元立减5元;
优惠方案2:在优惠1之后,再每满400元立减40元.
例如,一次购买商品的价格为150元,则实际支付额
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4174fe812bebfe2876316c0588aa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbdfdbf284e8cc6975803d0f62b95c5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b700fa9aeb1016aa71f76e4b6bb212e.png)
(1)小芳计划在该商场购买两件价格分别是250元和650元的商品,她是分两次支付好,还是一次支付好?请说明理由;
(2)已知某商品是小芳常用必需品,其价格为30元/件,小芳趁商场促销,想多购买几件该商品,其预算不超过500元,试求她应购买多少件该商品,才能使其平均价格最低?最低平均价格是多少?
您最近一年使用:0次
2023-12-20更新
|
283次组卷
|
3卷引用:浙江省S9联盟2023-2024学年高一上学期期中联考数学试题
名校
解题方法
10 . 已知椭圆
:
过点
,且离心率为
.
(1)求椭圆的标准方程;
(2)椭圆
和圆
:
.过点
作直线
和
,且两直线的斜率之积等于1,
与圆
相切于点
,
与椭圆相交于不同的两点
、
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3f95fba6d24080f9ea5b0e8e56677ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075ba8c6fb5ef7288cd3fed425c8e69e.png)
(1)求椭圆的标准方程;
(2)椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1131192ddf715123c834164e3b2d6c46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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