1 . 已知函数
,(
)在
时取得最大值,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85527d190d4e1d6bac4145d1c716e65e.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20358e7eff1af56d8f366d42df1a20b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19099ff9ce1b01be72e4535e600aeb63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85527d190d4e1d6bac4145d1c716e65e.png)
您最近一年使用:0次
解题方法
2 . 如图,在
中,
为线段
上靠近
点的四等分点,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e86a86312c7ec4079f460aca949f6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
![](https://img.xkw.com/dksih/QBM/2016/11/15/1573147881881600/1573147887779840/STEM/488548d853a049409e3a90b3a6e46707.png?resizew=215)
您最近一年使用:0次
解题方法
3 . 平面向量
与
的夹角为
,
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6d66b22abccd7fd3c436adf0f70ff84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c84455ce96bb8ec069286945271a1697.png)
A.![]() | B.![]() | C.4 | D.![]() |
您最近一年使用:0次
名校
4 . 将函数
的图象向左平移
个单位,再将所有点的横坐标伸长到原来的
倍,得到函数
的图象,则函数
的图象与直线
轴围成的图形面积为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d0da1ab60663e2fc1d25d9edcd8956b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b0e65fd294d3bb8bbbfe502823bce4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc6e69ad1a27916fb5c3d5901ded134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc6e69ad1a27916fb5c3d5901ded134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30d188cf1225fff70d476c659cf3a714.png)
A.![]() | B.![]() | C.![]() | D.以上都不对 |
您最近一年使用:0次
2016-12-04更新
|
375次组卷
|
2卷引用:2017届江西新余一中高三上学期开学考试数学(理)试卷
5 . 已知函数
,且
, 则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/490ec8875b90d8a10c25c00be3e1d10f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/150fd8c43c23f49a544388b9ef35e2e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43505e2bf01864837407832e0734702e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/490ec8875b90d8a10c25c00be3e1d10f.png)
A.3 | B.-3 |
C.0 | D.![]() |
您最近一年使用:0次
2017-02-08更新
|
1115次组卷
|
2卷引用:2017届江西鹰潭一中高三上学期期中数学(理)试卷
解题方法
6 . 已知如图所示的向量中,
,用
表示
,则
等于( )
![](https://img.xkw.com/dksih/QBM/2016/11/22/1573165553442816/1573165559365632/STEM/77f394d73f4448b289283441b6b883e5.png?resizew=100)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d2ec1d936fe4012d5df89cc51624f24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1625e24072a8fe6c277ecfca2c62cdaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec64476aaca08de0808afda3618109c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec64476aaca08de0808afda3618109c.png)
![](https://img.xkw.com/dksih/QBM/2016/11/22/1573165553442816/1573165559365632/STEM/77f394d73f4448b289283441b6b883e5.png?resizew=100)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
7 . 已知
,
,
(1)把
的图像向右平移
个单位得
的图像,求
的单调递增区间;
(2)当
与
共线时,求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ff5dd9de20b31a8490d7db867faabdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc1525aee9019a25cf71dc6054ec1ce.png)
(1)把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/313f6a92c699e02e9a0526f56df00145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
解题方法
8 . 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届江西省高安中学等九校高三下学期联考理科数学试卷
解题方法
9 . 设
与
是两个不共线向量,且向量
与
共线,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afae9db82464afb37d387f6cbedc8139.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ba1fa3a31f6c4f83162d1a48c8a8d77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-03更新
|
344次组卷
|
2卷引用:2017届江西省新余一中、宜春一中高三7月联考文科数学试卷
解题方法
10 . 化简![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28c95db72c724acfc4086c8692482d33.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28c95db72c724acfc4086c8692482d33.png)
您最近一年使用:0次