解题方法
1 . 正
中,
在
方向上的投影为
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4618e75fd728301239160a2c18273816.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d792a2aa25763e14cc2863be3887000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e8488ec91652ad560475f6d45c8e20b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4618e75fd728301239160a2c18273816.png)
您最近一年使用:0次
2016-12-04更新
|
720次组卷
|
3卷引用:2016届福建厦门双十中学高三下热身考理科数学试卷
12-13高二下·四川南充·期中
名校
2 . 函数
的图象的相邻两个对称中心间的距离为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e1a96da1f889739ac7e22c2ec507e8.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2016-12-05更新
|
912次组卷
|
7卷引用:2017届福建连城县一中高三上期中数学(文)试卷
解题方法
3 . 设向量
是夹角为
的单位向量,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cbc0e1e5b4709970076b5bdd07b9a8c.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/111939547e581e8bf029a241b9e9cb05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f785147690f83dcee0a0bc6c327e75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c1fee452190756a10d1edc37416590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cbc0e1e5b4709970076b5bdd07b9a8c.png)
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4 . 将函数
的图象向左平移
个单位
,若所得图象对应的函数为偶函数,则
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86e4b30f07356781d8848409d17688a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344cc24b575f4fd1ea7fe8ce5612fa9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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5 . 两向量
,
,则
在
方向上的投影数量为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42ded70a7ddef0a4809d2844b22fd394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afdebd9971e3b7956ab7f0d244c4dc5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9795e7f5cb9b366776c41d8f3f43942.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ed9c2e9fabbfc63733bae8fa079d00.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 若
的最小正周期为
,
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f85f66730d4d77762afc319c09bd6ba4.png)
![](https://img.xkw.com/dksih/QBM/2016/9/13/1573017026134016/1573017031852032/STEM/c989996e380e4db5b2d9a30dd1a7ff20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23b839ee03c914cebf3fc58dc69fe6c.png)
A.![]() ![]() |
B.![]() ![]() |
C.![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
2016-12-04更新
|
268次组卷
|
3卷引用:2016届福建厦门双十中学高三下热身考理科数学试卷
名校
解题方法
7 . 已知函数
.
(1)求
的最小正周期;
(2)求
在
上的最大值和最小值;
(3)若不等式
在
上恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad137fdaac5c4f088e6a8c2eea29dbdb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b42048481d02f1112bbcd877790334.png)
(3)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3fce0b7ef89dc5ea77542985ee152ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b42048481d02f1112bbcd877790334.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2016-12-05更新
|
1123次组卷
|
2卷引用:2017届福建连城县朋口中学高三上期中数学(文)试卷
8 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cceacaf06092e9a71bbc0cdcd0de4e99.png)
(Ⅰ)求函数
的最大值及此时
的值;
(Ⅱ)在
中,
分别为内角
所对的边,若
为
的最大值,且
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cceacaf06092e9a71bbc0cdcd0de4e99.png)
(Ⅰ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(Ⅱ)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2333da32638ec636fa1e69e750ca4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6598a8ab6ad88ce536f30348eef24a3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5c0edfa26564ef083507838e001f09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2333da32638ec636fa1e69e750ca4a.png)
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解题方法
9 . 已知向量
为单位向量,向量
,且
,则向量
的夹角为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0124108bfed329a0340dd4d8956d2e66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f456f90b027c305226c23dbe2f3e4101.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
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10 . 已知函数
,若
,则函数
的单调递增区间为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4166633592747de933d5b9eed25a13b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bd3b2d80af77b4d3cd601ebcd252b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
2016-12-04更新
|
282次组卷
|
3卷引用:2016届福建省泉州市高三5月质检理科数学试卷