解题方法
1 . 已知数列
前
项和
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b982b2d1d703e124c0f2c5894bf908c.png)
(1)求数列
的通项公式;
(2)求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b982b2d1d703e124c0f2c5894bf908c.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba57c83d526ac308d1461e80fcca9f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
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解题方法
2 . 2023年12月28日工业和信息化部等八部门发布了关于加快传统制造业转型升级的指导意见,某机械厂积极响应决定进行转型升级.经过市场调研,转型升级后生产的固定成本为300万元,每生产
万件产品,每件产品需可变成本
万元,当产量不足50万件时,
;当产量不小于50万件时,
.每件产品的售价为200元,通过市场分析,该厂生产的产品可以全部销售完.
(1)求利润函数的解析式;
(2)求利润函数的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bde66f0ef8ea3ac6d6ac91a93ba69ae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f0b5e5cad218cccd8386e8f4c0f846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b747dbcf51fe6eb7cd3c79854083204.png)
(1)求利润函数的解析式;
(2)求利润函数的最大值.
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3 . 如图,在四棱锥
中,平面
平面
,
是等边三角形,底面
是直角梯形,
,
,
.
为棱
的中点,求证:
平面
;
(2)求二面角
的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93edc7bb513f40a89173121c8570cd65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a675310c8ba418e5a59beb7317e21e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3753faebdc15d2d2e598d5ffc4487a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6ae72f5e5891249caa10c43224da89c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7b7c83470489253394bd288d7c920df.png)
(2)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a438393ddfc7da1804baf4932442bb35.png)
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解题方法
4 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212b6a14e1ed6a4168778f44c05a49aa.png)
(1)化简![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ba6b6ee00c4b2763cb3fa59caa69f.png)
(2)若
,且
,求
的值.
(3)若
是第三象限角,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/212b6a14e1ed6a4168778f44c05a49aa.png)
(1)化简
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ba6b6ee00c4b2763cb3fa59caa69f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c2fc88cb139f6353cc047eb21547bd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3299b21e382a636eb29f5a436bb363f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8466f82bce73bcc59604cad0769d5d27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e33f0449855a5f76bf061b24ea3c2433.png)
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5 . 在平面直角坐标系中,角
的顶点为坐标原点,始边为
的非负半轴,终边经过点
.
(1)求
与
的值:
(2)求
的值.
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27cf818dd484cc4cebd40a5f28eb8e9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8f798a9af75a091a8be0b71f2038260.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6369cd1db768436809404b1f3c4132c0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac02f345bcdadd676da7347d7f4c3a9.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155a98ed36f52e4bb266cdd915d805a1.png)
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6 . 已知甲箱中有厚度相同的2本文学小说和3本散文集,乙箱中有厚度相同的3本文学小说和2本散文集.
(1)若从甲箱中取出2本书,求在2本书中有一本是文学小说的条件下,另一本是散文集的概率;
(2)若从两箱中随机选择一箱,然后从中取出1本书,求取到一本文学小说的概率.
(1)若从甲箱中取出2本书,求在2本书中有一本是文学小说的条件下,另一本是散文集的概率;
(2)若从两箱中随机选择一箱,然后从中取出1本书,求取到一本文学小说的概率.
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解题方法
7 . 设复数
(其中
),
.
(1)若
是实数,求
的值;
(2)若
是纯虚数,求
的虚部以及
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c88701826f48dd1ea7a4869cf77d5813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aab15cfa691e78c4caf7d23046df9eca.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e34b88f343ca5a4c29057465541b9cf4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fe615164ed2995bdeea0f5b0ba94231.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec04f844e8fd9d9b1ef835e23eaa54e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30a3db58264009c9fc935305c61d6607.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29dbe2bfe98fe3ecc02bcff3e2a877f8.png)
您最近一年使用:0次
2024-05-09更新
|
750次组卷
|
4卷引用:辽宁省七校2023-2024学年高一下学期6月联考数学试卷
辽宁省七校2023-2024学年高一下学期6月联考数学试卷福建省永春第三中学等校2023-2024学年高一下学期期中联考数学试题(已下线)专题03 第七章 复数-期末考点大串讲(人教A版2019必修第二册)(已下线)专题06 复数-期末考点大串讲(人教B版2019必修第四册)
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解题方法
8 . 已知复数
与
都是纯虚数.
(1)求
;
(2)若复数
是关于
的方程
的一个根,求实数
、
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f84698e76b822c10aa2fa14f1a42ce69.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de971553ea8a66d7849b138a4a0625c5.png)
(2)若复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b58b7ac7d409f383f8e304e2a469a93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/783a7b78d895784b4af75b962bd40f07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
您最近一年使用:0次
2024-05-06更新
|
424次组卷
|
4卷引用:辽宁省鞍山普通高中2023-2024学年高一下学期六月月考数学试题B
辽宁省鞍山普通高中2023-2024学年高一下学期六月月考数学试题B陕西省西安市高新第一中学2023-2024学年高一下学期期中考试数学试题(已下线)5.2.2复数的乘法与除法-【帮课堂】(北师大版2019必修第二册)(已下线)核心考点4 复数及其运算 A基础卷 (高一期末考试必考的10大核心考点)
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解题方法
9 . 已知数列
的前n项和为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5730fc489344c43cc6250d4f1bb9c2b8.png)
(1)求数列
的通项公式;
(2)求数列
前6项和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5730fc489344c43cc6250d4f1bb9c2b8.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d013861990cf331c82eb453416ae31bc.png)
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10 . 已知向量
.
(1)求
;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed0651a88c2bac27bee6d0f291a4e9be.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1768d1918c2e68b5df05d2dfc39633a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bc16f74e4183a95521588436c702b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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