已知向量
,记
.
(1)若
,求
的值;
(2)将函数
的图象向右平移
个单位得到
的图象,若函数
在
上有零点,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc15cb94820bc65e99851d68728dfc60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bd729825112a26d4b2fa52d96cdb081.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/923ca1de2bc955b2810d86354961aaba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e4abf9e0a29f1cda82f2d8577bfb80e.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f785147690f83dcee0a0bc6c327e75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2aa4ea2eaf899438bf00f4db4d813ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c93b543922ac73fe15b36d6c8192dad0.png)
更新时间:2016-12-03 11:59:28
|
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解答题-问答题
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适中
(0.65)
【推荐1】已知向量
,
,函数
.
(1)求函数
的单调增区间;
(2)若方程
在
上有解,求实数m的取值范围.
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(1)求函数
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(2)若方程
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适中
(0.65)
【推荐2】已知
有且只有一个零点
,且
.
(1)求
的取值范围;
(2)若点
到直线
的距离为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dca02a6fd6775912beb45f9fe044584.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5cbf1211335bcbc0ebb05414669eda0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/096be2c9d4d8c10b1584a579d288fef4.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c375d40031c6c5d7459dab596623af5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55286945a57ad59b5afb424de9dea480.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64f13f113c5e4bdfeb80d5d0a8dcbf77.png)
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适中
(0.65)
名校
【推荐3】已知二次函数
满足
.且
,
.
(1)求
的解析式;
(2)是否存在实数
,使得函数
在
上有零点?若存在,求出
的取值范围;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fc7a40cc540608fac88d9a9efe87473.png)
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(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f447df497e32f521e2661620be41033a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3ebb5b422d4800b6e037155bf2130ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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适中
(0.65)
【推荐1】函数
的部分图象如图所示,将
的图象先向右平移
个单位长度,再向上平移1个单位长度后得到函数
的图象.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/ee8023bf-14c2-4c8e-ae1b-58ed7c755ddd.png?resizew=174)
(1)求
的解析式;
(2)求
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上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dba536449058752998d3be2867cdcbed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/ee8023bf-14c2-4c8e-ae1b-58ed7c755ddd.png?resizew=174)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca68fc9131f3589642e7d0c8d9db156.png)
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适中
(0.65)
名校
【推荐2】已知函数
的图象关于点
对称.
(1)当
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的值域;
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图象上各点的纵坐标保持不变,横坐标变为原来的
倍(其中
),所得图象的解析式为
.若函数
在
有两个零点,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6da1b51425e5c106ced70c9a82107612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71ebb7b00c8246c9a938bdbf40b4e7fe.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713e048bbbcd9f3dec4d3cf9ece3f4c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c9aeed3c8c5a04e48d011c607f9142.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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解答题-问答题
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适中
(0.65)
【推荐3】已知函数
的部分图象如图所示.
的解析式及其单调递增区间;
(2)将函数
的图象上所有的点向右平移
个单位,再将所得图象上每一个点的横坐标变为原来的2倍(纵坐标不变),得到函数
的图象.若方程
在
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,
求①求m的取值范围.
②求
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fb2b2fdc4e57e2d2de7115758518622.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aeb076bad84890e24dbdc945ad543cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91a09da1efd0f599dd4682f2284822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a604fadcbf8568cbd8dacddd68443e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50f2c9ba604e34100159eb10cccd2b04.png)
求①求m的取值范围.
②求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26a8516b1db6979a28b07fd841c7f06b.png)
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适中
(0.65)
【推荐1】已知函数
,
.
(1)若
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(1)若
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适中
(0.65)
名校
【推荐2】已知函数
,
.
(1)求
的最小正周期和单调减区间;
(2)若
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)为
的一个零点,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22da0bb1cf761a0c0e4dac08087209b7.png)
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(1)求
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(2)若
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您最近一年使用:0次
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适中
(0.65)
名校
【推荐3】已知函数
.
(I)求
的值和函数
的最小正周期;
(II)求
的单调递减区间及最大值,并指出相应的x的取值集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd00a9c3949dab1cd561985a8e0e1bd5.png)
(I)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fae6644342cc4c635d31a8c3a05610f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(II)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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解题方法
【推荐1】已知A,B,C三点的坐标分别是
,
,
,其中
.
(1)若
,求角
的值;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f2b1f4120365cb6ee4925fe417563f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f68d4f1066311e8c5b4ef7ec4d2c22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a70ddb54cd697dae31b8544f68fcf7f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee7eb70bf21b6f81bfc38e16de233dc.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25861f75062afeea1824a7445a80ffbc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca210dd79eb4d84d5ced7d8503006253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9146fc0a63e5c14a8fa46573e60c07ba.png)
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适中
(0.65)
名校
【推荐2】已知向量
.
(1)设
,求
在
上的减区间;
(2)若
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与
共线,且x为第二象限角,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56a4b1b6c821466c7d5b7dffb4763c3f.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02669c4b39f9a4e148f4abbe2ce9b8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3aae9c8988f4a48db69cad3308942c9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e64d854922db44d182841981562f5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/737d61df8bcff0b4e75d7084e75f23ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/058d8811c63e7a402a329b9b3c9e39c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f6b141026558558fe73e16f904969e.png)
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