解题方法
1 . 记
的内角
的对边分别为
,面积为
,则求
.
![](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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e9b8645ae9e19397fab262aa57cacea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2 . 已知函数
图象的一个最高点和最低点的坐标分别为
和
.
(1)求
的解析式;
(2)若存在
,满足
,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee6f96ffc399d846e82b69e84a12711.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01f241d122ee35fb300e05a19d0c029f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56db042ac34335df95d63245b22a4afd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/514468159bb04d278dadce8ab9e75847.png)
您最近一年使用:0次
2020-01-04更新
|
298次组卷
|
2卷引用:贵州省黔南州2018-2019学年高一上学期期末数学试题
名校
3 . 已知角α的顶点与原点O重合,始边与
轴的非负半轴重合,它的终边过点
.
(Ⅰ)求
的值;
(Ⅱ)若角
满足
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/889a5e04c5187fb20415a59ce6adeed5.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc45df942d41d6d21b80cf8b00b27671.png)
(Ⅱ)若角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/577fd4d79427834eecacba91aa1e7afa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/800db22e042a298041eda8b0c72abb7c.png)
您最近一年使用:0次
名校
4 .
的内角
,
,
的对边分别为
,
,
,且
.
(1)求
;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd52ba87e57935f5d905abef36b8b806.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc5a30a28eb36a139a1bcac69aa35432.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/721e29b775e696045f44a4b1e7f74ef2.png)
您最近一年使用:0次
2019-12-09更新
|
308次组卷
|
5卷引用:2019届贵州省黔南州高三上学期期末数学试卷理科试题
名校
5 . 函数
(
)的最小值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2287a9b5e1671e04b16e01fa8f907179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
您最近一年使用:0次
名校
6 . 已知
,求:
(Ⅰ)
;
(Ⅱ)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da0d84bcf41aa94ffbf947fd6a24dd2a.png)
(Ⅰ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(Ⅱ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd0d45f92a664de19019f5342147af21.png)
您最近一年使用:0次
2019-01-24更新
|
342次组卷
|
2卷引用:【全国百强校】贵州省黔南市都匀第一中学2018-2019学年高一上学期期末考试数学试题
名校
7 . 某同学用“五点法”画函数
在某一个周期内的图象时,列表并填入了部分数据,如下表:
(Ⅰ)请将上表数据补充完整,填写在答题卡上相应位置,并直接写出函数
的解析式;
(Ⅱ)把
的图象上所有点的横坐标伸长到原来的2倍(纵坐标不变),再把得到的图象向左平移
个单位,得到函数
的图象,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e83af62be3d5795120c85e4d99135bc4.png)
![]() | 0 | ![]() | ![]() | ![]() | ![]() |
![]() | ![]() | ![]() | |||
![]() | ![]() | ![]() | ![]() | ![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c119b68fd9bd43e73525a53f99f538d0.png)
您最近一年使用:0次
8 . 已知角
的顶点为坐标原点,始边与
轴的非负半轴重合,终边上有两点
,且
,则
=
![](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/e49ff0caa34b9c0062de072772ba46f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeea04ed9fce6ab6c7e3cbe6cdb19866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13880b9454c5942f164d934b1834783.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 已知函数
的部分图象如图所示.
![](https://img.xkw.com/dksih/QBM/2021/3/17/2679697587519488/2684833714610176/STEM/63ae8fa9-3f09-4e9c-ba68-a27f2af5213c.png?resizew=257)
(1)求
的解析式以及
图象的对称轴方程;
(2)求
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11745b43e7d81e5c698ed557bfe899ff.png)
![](https://img.xkw.com/dksih/QBM/2021/3/17/2679697587519488/2684833714610176/STEM/63ae8fa9-3f09-4e9c-ba68-a27f2af5213c.png?resizew=257)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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名校
10 . 已知函数
.
(1)求函数
的单调递增区间;
(2)在
中,内角
所对边的长分别是
,若
,求
的面积
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcbf267b6243a8cff953fbbb190d811.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edd51c782333e04862704165622ad68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bbf5887ebf0a2fb425dc594bb983585.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b662b3991784173f1a7c7c94f3f19dc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53501558756cd28b30ce6a75d4c0c5d1.png)
您最近一年使用:0次
2016-12-03更新
|
1374次组卷
|
6卷引用:2016届贵州省黔南州高三上学期期末文科数学试卷