名校
1 . 已知a,b,
,则“
”的一个充要条件是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33f306d2b261f4c39a9fc0858d96e647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 设
,已知直线
与圆
,则“
”是“直线l与圆C相交”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2f49fc6babe4d5eba3b33891e75ec1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f25834d8218c53cb975c2a2fe7442a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494ff98e615f886135ca5ede0a082891.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
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3 . 设
,函数
,
(1)若
,判断
函数是否存在实数c,使得
为奇函数?说明理由.
(2)若
,函数
在区间
上是严格增函数,求c的最大值.
(3)若函数
的图像经过点
,且函数
图像与x轴负半轴有两个不同的交点,求此时c的值和实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89ea5dd205b08a206012c1042d11ccf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68da35ff18ac91ae906d29608b4e905d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1001e163773f23565505f23c51b51c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dccf1f9faac56117d6d3dd1dddd286d.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ce2f5e22175e3ff8ab5e0afca58f9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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4 . 如图,三棱锥
中,
,
,
,E为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/27/73000cff-6b06-4c1f-9297-0cc7d5fdc277.png?resizew=186)
(1)证明:
;
(2)点F满足
,求平面
和平面
所成的锐二面角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/891579e7c231584a8e16b8eeff79888e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3d6fb3406ff7fabf9c3b5c7541c67d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff9c7cbcc38b28d45c8539710e5b260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d495d6bb2cf4e141d2055a9f7072018.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/27/73000cff-6b06-4c1f-9297-0cc7d5fdc277.png?resizew=186)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0de882caea347e2bd6fcd426caa13b8.png)
(2)点F满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028a14cd09c33f7e6d9fdc184b5fe64b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ddc76d96d6951ebfef3fe63892a1114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/437bc0b5b7815c77b4956f194fc6ef52.png)
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5 . 已知公差d不为0的等差数列
的前n项和为
,
,
.
(1)求数列
的通项公式;
(2)令
,记
为数列
前n项和,若
,求正整数n的最小值.
![](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/3e8c45e4c4ab30665338dd87a2258f23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4e32575d33b8a9979f4760afd361f9.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/810a46a2970d7451e241e2e49d815ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/602d6c39b85c6f4e8df3f3c6b32f5655.png)
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6 . 设
的内角A,B,C所对的边分别为a,b,c,已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a3a71c3b98c896e46e5360988b892d1.png)
(1)求角B;
(2)若
是锐角三角形,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a3a71c3b98c896e46e5360988b892d1.png)
(1)求角B;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25edcc950d3354ff7df6c74dd4d3f3b1.png)
您最近一年使用:0次
2023-11-26更新
|
478次组卷
|
3卷引用:上海市虹口高级中学2024届高三上学期期中数学试题
上海市虹口高级中学2024届高三上学期期中数学试题(已下线)专题1.11解三角形常考大题归类-重难点突破及混淆易错规避(人教A版2019必修第二册)福建省莆田哲理中学2023-2024学年高一下学期阶段检测数学试卷
解题方法
7 . 定义在
上的函数
满足:当
时,
;当
时,
.将函数
的极大值点从小到大依次记为
,
,…
,并记相应的极大值为
,
,…,
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c4989f00563dc9ea4e57218ee3a5319.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28e887308e8cf19f9000f20d0b2ce70c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b27f27cbb8185c1974d715ff95f8801c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60f8cf7cda4e8de86238178cdf5ffdef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.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/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/686ece75006ad358f23314dc8a246e11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a53f265b8a8dfc4bc30e174dc8a5c0.png)
A.9922 | B.29624 | C.88694 | D.265864 |
您最近一年使用:0次
解题方法
8 . 如图所示,在正方体
中,E为线段
上的动点,则下列直线中与直线CE夹角为定值的直线为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/27/e9624614-ef43-4edd-8de1-fd9afb2ff006.png?resizew=167)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/27/e9624614-ef43-4edd-8de1-fd9afb2ff006.png?resizew=167)
A.直线![]() | B.直线![]() |
C.直线![]() | D.直线![]() |
您最近一年使用:0次
9 . 设复数
(i为虚数单位)且
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa3d3ca8ae9c034b384ba8267808553.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec582c7b19e2e85d6f9ec3523de707ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29bfdb5f50c0514b2b7cb83b2c29407b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70c2519610d6d1d6d0855b0f27dfc5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa3d3ca8ae9c034b384ba8267808553.png)
您最近一年使用:0次
2023-11-26更新
|
617次组卷
|
7卷引用:上海市虹口高级中学2024届高三上学期期中数学试题
上海市虹口高级中学2024届高三上学期期中数学试题(已下线)第02讲 7.1.2 复数的几何意义(1)-【帮课堂】(人教A版2019必修第二册)(已下线)7.1.2 复数的几何意义(分层练习)-【上好课】(已下线)7.1.2复数的几何意义【第三练】“上好三节课,做好三套题“高中数学素养晋级之路(已下线)7.1.2复数的几何意义(第1课时)(已下线)10.1.2 复数的几何意义-【帮课堂】(人教B版2019必修第四册)(已下线)第十章:复数章末重点题型复习(2)-同步精品课堂(人教B版2019必修第四册)
10 . 已知常数
,在
的二项展开式中的常数项为15,设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4678a38ca244e757c5d1fd256bf6a18c.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2784cd4422675ba4a85a0d2026579e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7fc5fb146ad6c49538def80d3d8b410.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4678a38ca244e757c5d1fd256bf6a18c.png)
您最近一年使用:0次