1 . 已知椭圆
的左、右焦点为
,
,点
在椭圆上,且不与椭圆的左、右顶点重合.
(1)当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1565358ed95afa71757c1d7d1fd2ea.png)
___________ .
(2)椭圆上有___________ 个点
,使得
为直角三角形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80b861ba40387cb2bcd04945f5a371a.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/dad2a36927223bd70f426ba06aea4b45.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c75995958607076122e6ba50fa83232.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1565358ed95afa71757c1d7d1fd2ea.png)
(2)椭圆上有
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
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解题方法
2 . 函数
的单调递减区间为__________ ,值域为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43ac61f1c19100495d797fc816703c5f.png)
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2023-11-12更新
|
639次组卷
|
2卷引用:浙江省绍兴市上虞中学2023-2024学年高一上学期期中测试数学试题
3 . 已知函数
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b842ea9a0a9ed1b02122584323a7d9fa.png)
_______ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be4e3838d6e4ea8e3defd8401b305774.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64221395b5f2b8bd6093bd5e728e9ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b842ea9a0a9ed1b02122584323a7d9fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be4e3838d6e4ea8e3defd8401b305774.png)
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解题方法
4 . 某数学兴趣小组模仿“杨辉三角”构造了类似的数阵,将一行数列中相邻两项的乘积插入这两项之间,形成下一行数列,以此类推不断得到新的数列.如图,第一行构造数列1,2:第二行得到数列
:第三行得到数列
,则第5行从左数起第8个数的值为___________ ;
表示第
行所有项的乘积,设
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d252feb52e1a77b6bac1ba17825095.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2303277c24a13d9f8ef622f841ca6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afcc9988fc4a28e8c0379e87b69215ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15222d31df73a231d9436d6e9cbc15a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0d252feb52e1a77b6bac1ba17825095.png)
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5 . 已知数列
满足:
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9bbe98100c8067ff36ac536d043a85.png)
__________ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/162a5cf38a6c321649fd0abc1afba4f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9bbe98100c8067ff36ac536d043a85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
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6 . 设x,y为实数,若
,则
的最大值为________ ;
的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c8ad3b3f438432c45a0c85fd6856a8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ebc856291255f2d4a6c20b982a2442.png)
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2022-08-04更新
|
1006次组卷
|
3卷引用:浙江省绍兴市诸暨市2021-2022学年高二下学期学考模拟(5)数学试题
7 . 已知
的三个内角
所对的边分别为
,则边
= ____________ ,
的面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7132c2d8b2ff504e6c2ba36c4f6dcfaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0213c285f449f09b914dfec50ed98cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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8 . 若
的展开式中只有第5项的二项式系数最大,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
____ ,展开式中的
项为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84e6fd57374e794ca5154735f4e5c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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9 . 二项式
的展开式中共有11项,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
___________ ,常数项的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8035440e68e28d5591e84a649fd06409.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
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10 . 双曲线
的离心率是___________ ,渐近线方程___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2724acdc1cbf15077b0b0295ab21a3d.png)
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