1 . 在等差数列
中,
,
,
,
,求
和
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/390636a89883bd64bf8da9bf8654aff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ec5092048ae59b74623c4be1048c8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d6a6a7d7739cc81edb4b6a6d1d8027c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09736783c8327dd091945a4ea58842cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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解题方法
2 . 求下列函数的定义域.
(1)
;
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b978841af2017d1caee4cc104389759f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cd8d76465bae9c55d6d3bb91b7c1732.png)
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3 . 已知扇形的圆心角是
,半径为
,弧长为
;
(1)若
,求扇形的弧长
;
(2)若扇形的周长为
,当扇形的圆心角
为多少弧度时,这个扇形的面积最大,最大值是多少?并求出此时的半径
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf9b0ee4ab1a05aa570cef8fc341356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若扇形的周长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb26c5cdef6f16f4b39cd091041b439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
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4 . 已知角
的终边在直线
上,
(1)写出角
的集合
;
(2)写出集合
中适合不等式
的元素.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f75508b798b0e011e91b8d427a102ca.png)
(1)写出角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(2)写出集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a929a007012720ca2e8bd92fb2febd9.png)
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解题方法
5 . 如图,在直角梯形
中,
,
,
,
与
交于点
.
和
表示
,
;
(2)设
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e1d3aa872e7e2d9d5f34d73c31a4ea2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d19e0e6e28dbfcfbf7c292819f2fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85c4bdfb0db1e31e8459df1d15f9ab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/083a20abb668d4c26fe5039bd108b40a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89265cbe3abc6b966ce8967fead448b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4781e3daa2c4e018ca0ae09bb56abc0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f33a112e9728d7b560199765c815f69.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/015756e8dd84a004652163864e639d61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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6 . 如图所示,在平面四边形
中,
,
的值.
(2)若
为锐角,
,求角
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/351ee120b967b04a947d2b957a4ecd20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcba4db5c1115f43681182598cef3fff.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf1ea6f89ddfa633ca2012b3c7730547.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次
2024-03-31更新
|
1491次组卷
|
3卷引用:陕西省西安高新第一中学2023-2024学年高一下学期第一次月考数学试题
陕西省西安高新第一中学2023-2024学年高一下学期第一次月考数学试题广东省潮州市松昌中学2023-2024学年高一下学期期中考试数学试题(已下线)第二章平面向量及其应用章末十六种常考题型归类(2)-【帮课堂】(北师大版2019必修第二册)
7 . 求下列函数的导数:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c34e42b9acc6daad804b2a3b5f143bf.png)
(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b35c207bdd5634ab26bc3d8e78c823.png)
(3)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c34e42b9acc6daad804b2a3b5f143bf.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b35c207bdd5634ab26bc3d8e78c823.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a626de084ee0ddf786ea224a8fb75fbf.png)
您最近一年使用:0次
8 . 求下列各式的值:
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e14fd18a437c246102adcfd9cb6afd2.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c995fb14e304e982b40e4565e8f98d7d.png)
您最近一年使用:0次
2024-02-27更新
|
898次组卷
|
2卷引用:陕西省商洛市2023-2024学年高一上学期期末教学质量检测数学试题
9 . 计算求值.
(1)
;
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba1ad9a5c023c8d4f7d3945a3bad35c0.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0af976877330f9750de07492332f1314.png)
您最近一年使用:0次
解题方法
10 . 现有甲、乙、丙3名志愿者被随机分到A,B两个不同的岗位服务,每个岗位至少有一名志愿者.
(1)求甲、乙两人同时参加A岗位服务的概率;
(2)求甲、乙两人不在同一个岗位服务的概率.
(1)求甲、乙两人同时参加A岗位服务的概率;
(2)求甲、乙两人不在同一个岗位服务的概率.
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