解题方法
1 . 已知定义在
上的函数
,对任意
都有
,且
是
上的增函数.
(1) 求证:函数
是
上的奇函数;
(2)若不等式
对任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcbca3478eae63853d2aab5332e2e56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/941b4ceaf8c97a676d9ad3320cb940d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1) 求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76bf9ca432ab458f5e2303c35d82e78a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2 . 若△ABC的内角A、B、C的对边分别为a、b、c,其面积为S,
,则a=_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b14f48eac742042996884c049d95654.png)
您最近一年使用:0次
2012·黑龙江·二模
名校
3 . 已知函数f(x)=
x-
sinx-
cosx的图象在点A(x0,f(x0))处的切线斜率为1,则tanx0的值为 ______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eff998d034284391ca064755fa6bf1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10402e4ddd0d323cc1ae83801ae976db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffc97f5fb5eb573bb92d3c29e343ee40.png)
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2016-12-03更新
|
1491次组卷
|
7卷引用:四川省宜宾四中2019届高三上学期期末数学(文)试题
四川省宜宾四中2019届高三上学期期末数学(文)试题(已下线)2012届黑龙江省哈六中高三第二次模拟考试理科数学试卷(已下线)2012-2013学年四川省成都七中高二“零诊”考试文科数学试卷(已下线)2015高考数学(理)一轮配套特训:2-10导数的概念及运算2016届宁夏育才中学高三上学期第四次月考理科数学试卷山东省德州市2017-2018学年高三年级上学期期中预测数学(文科)试题【全国市级联考】四川省雅安市2017-2018学年高二下学期期末考试数学(理)试题
名校
4 . 已知函数
,则
( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfcf08b300284b153d3f88ef2f21f8f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb386db5903e0b2560d9bf7f9cb5a30.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-11-11更新
|
223次组卷
|
2卷引用:四川省宜宾市第四中学校2019-2020学年高一下学期第一次在线月考数学试题
名校
解题方法
5 . 在
中,
,
,
分别为角
,
,
的对边,且
,
.
(1)求
及
的面积
;
(2)若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.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/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/4aa60241b054bee50c9b577b280e714b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a409646d7e00fcdbcd3bf7361a06f37b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1311f32edf13f8caee5edb03f24a7ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb7a488910743dc5c63afb394b87e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069390dd908ff203327958117a226593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32e2f2d7147cf1699fbfdef9cf4af74.png)
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2017-08-17更新
|
166次组卷
|
3卷引用:四川省宜宾市第四中学2017-2018学年高一下学期期末模拟数学试题
名校
6 . 已知集合N={x|x2-x-2≤0},M={-2,0,1},则M∩N=( )
A.[-1,2] | B.[-2,1] | C.![]() | D.![]() |
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2020-10-12更新
|
41次组卷
|
6卷引用:【市级联考】广西桂林市、崇左市2019届高三下学期二模联考数学(理)试题
7 . 甲、乙两名篮球运动员在10场比赛中得分的茎叶图如图所示,则“
”是“甲运动员得分平均数大于乙运动员得分平均数”的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3680f7d0d96efc5b207c8e9552e21c.png)
![](https://img.xkw.com/dksih/QBM/2017/5/5/1680682530537472/1681849595478016/STEM/d906dcc5dcd3448ba6852ff79245dbd7.png?resizew=214)
A.充分不必要条件 | B.必要不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
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2017-05-07更新
|
209次组卷
|
4卷引用:2020届四川省宜宾市第四中学校高三上学期期末考试数学(理)试题
解题方法
8 . 已知
,则下列不等关系一定成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a501b972f55d1b5c6e71e5651fc3199e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-08-17更新
|
127次组卷
|
3卷引用:四川省宜宾县第二中学校2017-2018学年高一下学期期末模拟数学试题
解题方法
9 . 已知全集
,
,
, ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ca2e4c90a552fa55e5b01b917bc8ce.png)
(1)求
;![](https://img.xkw.com/dksih/QBM/2016/3/21/1572551200194560/1572551206281216/STEM/1ab48a8dc1fd48ceb4e048e02b3b949a.png)
(2)若
,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/3/21/1572551200194560/1572551206281216/STEM/7f4603dab83344f5a5fc5cdf465f4c54.png)
![](https://img.xkw.com/dksih/QBM/2016/3/21/1572551200194560/1572551206281216/STEM/65645f6358b747be93a8f81b342a113e.png)
![](https://img.xkw.com/dksih/QBM/2016/3/21/1572551200194560/1572551206281216/STEM/84f3d67b06fc40df9604cb4c78d7a4f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ca2e4c90a552fa55e5b01b917bc8ce.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d259db9bb0e132881e875a77d324057.png)
![](https://img.xkw.com/dksih/QBM/2016/3/21/1572551200194560/1572551206281216/STEM/1ab48a8dc1fd48ceb4e048e02b3b949a.png)
(2)若
![](https://img.xkw.com/dksih/QBM/2016/3/21/1572551200194560/1572551206281216/STEM/c5083ec54e614294865102316104da93.png)
![](https://img.xkw.com/dksih/QBM/2016/3/21/1572551200194560/1572551206281216/STEM/b22d5a2b3d1c4dc9b29dfd142866d8bd.png)
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10 . 已知集合
,
,则![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319382716416/STEM/7927721fa90a426a9e644d8c6a4c38ca.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319382716416/STEM/601308a089584cc68d80065bcbe2e20b.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319382716416/STEM/0aac444e82b848359a22207321f1e398.png)
![](https://img.xkw.com/dksih/QBM/2015/11/27/1572319377096704/1572319382716416/STEM/7927721fa90a426a9e644d8c6a4c38ca.png)
A.![]() ![]() | B.![]() |
C.![]() | D.![]() |
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