1 . 设
分别为曲线
上不同的两点,
,
,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/976a13bcc46b77df6805d88275b3616b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b7186a0a143460905e117dd9dc17c45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/055a2ef09e2ee0948cf67c58de58732d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ce7574c49fc254b6c1137a79c35aac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd8e716ae5b63cb6d3ab87a277ce8217.png)
A.1 | B.2 | C.![]() | D.3 |
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2 . 已知向量
与
的夹角为120°,且
,那么
的值为_________ .
![](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/730ac5743d111f43278b96914eac1912.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/625ea85d64fc4e9d74f0539e43ecef18.png)
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10-11高三上·浙江杭州·期中
3 . 已知
,则
等于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40a53b50e6d65ccc5425ee5bc84bd107.png)
![](https://img.xkw.com/dksih/QBM/2016/12/7/1579043093012480/1579043093217280/STEM/71ef80ef043947e48777f7ae1e11fc22.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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4 . 已知点A(4
,1),将OA绕坐标原点O逆时针旋转
至OB,设C(1,0),∠COB=α,则tanα=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65ecc1c16f2874ef4b7e0d6aed9db0b5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 已知
,点
在
内,且
,设
,则
等于
![](https://img.xkw.com/dksih/QBM/2016/12/7/1579043441606656/1579043441860608/STEM/0f087cc7f5ae4bbf92c64e71a07bb83c.png)
![](https://img.xkw.com/dksih/QBM/2016/12/7/1579043441606656/1579043441860608/STEM/bea1a7d9412c4e1b847f6854ac8806b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773fbd435f27517f3bf15d8bf02a9654.png)
![](https://img.xkw.com/dksih/QBM/2016/12/7/1579043441606656/1579043441860608/STEM/b553b73cfdf54197982e23522c6a2033.png)
![](https://img.xkw.com/dksih/QBM/2016/12/7/1579043441606656/1579043441860608/STEM/ab026039e05141a087a2e7ff281f13ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44ab7024f73ff0cb7e6a48197538a91e.png)
A.![]() | B.![]() |
C.![]() | D.2 |
您最近一年使用:0次
名校
6 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5078cff58e9af889c64db40f31880497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8c1ff110c5922fd8ed21b1375f83f13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5078cff58e9af889c64db40f31880497.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2016-12-04更新
|
304次组卷
|
4卷引用:2016届福建省厦门一中高三上学期期中文科数学试卷
解题方法
7 . 已知
,则![](https://img.xkw.com/dksih/QBM/2016/12/23/1619431100727296/1619431101071360/STEM/e4860be74ece4c5dbcc5664b969fbb5e.png?resizew=57)
_______ .
![](https://img.xkw.com/dksih/QBM/2016/12/23/1619431100727296/1619431101071360/STEM/d1187c2f9b3c4c0dbe31f235755f69c7.png?resizew=111)
![](https://img.xkw.com/dksih/QBM/2016/12/23/1619431100727296/1619431101071360/STEM/e4860be74ece4c5dbcc5664b969fbb5e.png?resizew=57)
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8 . △ABC的三内角A,B,C所对边长分别是a,b,c,设向量
,
,若
,则角B的大小为
![](https://img.xkw.com/dksih/QBM/2016/4/19/1572596167262208/1572596173135872/STEM/6f1010ada2fb497e8c600b7cff195c2d.png)
![](https://img.xkw.com/dksih/QBM/2016/4/19/1572596167262208/1572596173135872/STEM/0cac7a35eea5466cbc2a098b459ef51e.png)
![](https://img.xkw.com/dksih/QBM/2016/4/19/1572596167262208/1572596173135872/STEM/2e57cc6121ef48dea666fe093634a5f5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 已知直线
与圆心为
的圆
相交于
两点,且
,则实数
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cdcdfbc00d4c0b0f7e12bdcc1386a38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14f0dcd47bafcfe63404dc7b51aaaa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d498c6c5d5f05bd767afd56770d9d91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2016-12-05更新
|
377次组卷
|
3卷引用:2017届福建连城县一中高三上期中数学(理)试卷
10 . 若函数
在区间
上有且只有两个极值点,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/471b580b78a8e4d4e2dce905f51034c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/999e2802bdf6521d0d5a811e7f52aaab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8542e50495795c98f7aa7501fe0690a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
252次组卷
|
2卷引用:2016届福建省厦门市高三5月月考文科数学试卷