解题方法
1 . 已知
.
(1)求
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969de885b8c53267f7dcf63b87693118.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f407134cad46827104d6654d92db1198.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2deee3250f8fdccd02b472670dd23653.png)
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解题方法
2 . (1) 计算:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f863451dbc2531efaf83741cf416a471.png)
(2) 计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f863451dbc2531efaf83741cf416a471.png)
(2) 计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88b285322dbe2a6128591b6b5d4a0010.png)
您最近一年使用:0次
3 . 在
中,
是边
上的一点,
,
,
,
.
(1)求
的大小;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efc6e4b936d7a800e839a30c3839574d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b6bef27de230acad352f25e954f4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3274aac77f61dc25ab33cf0351b3810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdba5e7de662f6a691f0d6fb57f9ffdf.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cbce11aa19b8bd2bf6ee5a834e005de.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
您最近一年使用:0次
名校
4 . 已知
,且sin(α+β)=3sin(α-β).
(1)若tanα=2,求tanβ的值;
(2)求tan(α-β)的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85707cdc6bd9bfbd27f0cf2cb11664ed.png)
(1)若tanα=2,求tanβ的值;
(2)求tan(α-β)的最大值.
您最近一年使用:0次
2019-01-15更新
|
334次组卷
|
2卷引用:【全国百强校】湖北省沙市中学2017-2018学年高一上学期期末考试数学试题
12-13高三上·湖北省直辖县级单位·期末
5 . 设函数![](https://img.xkw.com/dksih/QBM/2012/2/29/1570781979074560/1570781984563200/STEM/f1528bcc7f094cba8e665ea3baf8df2a.png)
(I)对
的图象作如下变换:先将
的图象向右平移
个单位,再将横坐标伸长到原来的2倍,纵坐标不变,得到函数
的图象,求
的解析式;
(II)已知
,且
,求
的值.
![](https://img.xkw.com/dksih/QBM/2012/2/29/1570781979074560/1570781984563200/STEM/f1528bcc7f094cba8e665ea3baf8df2a.png)
(I)对
![](https://img.xkw.com/dksih/QBM/2012/2/29/1570781979074560/1570781984563200/STEM/7f2e7036d6254a00bf9a0679e4c45c31.png)
![](https://img.xkw.com/dksih/QBM/2012/2/29/1570781979074560/1570781984563200/STEM/7f2e7036d6254a00bf9a0679e4c45c31.png)
![](https://img.xkw.com/dksih/QBM/2012/2/29/1570781979074560/1570781984563200/STEM/3d9b4151118c48f3bf3e511b5c5794b2.png)
![](https://img.xkw.com/dksih/QBM/2012/2/29/1570781979074560/1570781984563200/STEM/13943d2367b84c9ba8aa3ac820bb03ca.png)
![](https://img.xkw.com/dksih/QBM/2012/2/29/1570781979074560/1570781984563200/STEM/13943d2367b84c9ba8aa3ac820bb03ca.png)
(II)已知
![](https://img.xkw.com/dksih/QBM/2012/2/29/1570781979074560/1570781984563200/STEM/6f416dafce104e20ae503ba507a2e8b3.png)
![](https://img.xkw.com/dksih/QBM/2012/2/29/1570781979074560/1570781984563200/STEM/5b07eaaa2a8f428bb9d8c7199bade892.png)
![](https://img.xkw.com/dksih/QBM/2012/2/29/1570781979074560/1570781984563200/STEM/f2821d58dc894f93b6daec1863a8f102.png)
您最近一年使用:0次
11-12高三上·吉林白山·阶段练习
名校
6 . 设
是平面上的两个向量,若向量
与
互相垂直.
(Ⅰ)求实数
的值;
(Ⅱ)若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00c2c78521e50eb6c14a38a241ded7b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9cd8bbf47b69bbd7a6263b041290d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bca35e52b8430246a1cf96e9e617cce.png)
(Ⅰ)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cde095a97f35f6b708d544608e6a6c4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2adb91c4eea578ed8f41b438200682d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
您最近一年使用:0次
2016-12-01更新
|
1151次组卷
|
6卷引用:湖北省小池滨江高级中学2018学年度下学期高一年级4月月考数学试卷
湖北省小池滨江高级中学2018学年度下学期高一年级4月月考数学试卷(已下线)2011-2012学年吉林省白山市友好学校高三年级12月联考理科数学试卷(已下线)2011-2012学年吉林省白山市友好学校高三年级12月联考理科数学试卷上海市松江区松江二中2017-2018学年高二上学期第一次月考数学试题河南省郑州市外国语中学2017-2018学年高一下学期期中数学试题江苏省射阳中学2022-2023学年高一下学期3月月考数学试题