已知函数
.
(1)求函数
的单调增区间;
(2)若方程
在
,
上有解,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4962cdaba377ed598115db40419e409a.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4a4b368fc617cbc67c23c5c4129fe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3038d4728f959a8efedc2592e4a4b5fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a43f50dff64391af97d96a9538bce5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2020-10-22 19:56:19
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解答题-问答题
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适中
(0.65)
【推荐1】已知函数
.
(1)求
的最小值并写出此时
的取值集合;
(2)若
,求出
的单调减区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/523db7c8ac464eb1743ae0fdfa4479ac.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0fe208f73fa35d3778032cc0208a0d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/329fbfb692e42b1279521fd025c804b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0fe208f73fa35d3778032cc0208a0d8.png)
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适中
(0.65)
【推荐2】已知函数
.
(Ⅰ)当
时,求函数
在区间
上的最大值与最小值;
(Ⅱ)当
的图像经过点
时,求
的值及函数
的最小正周期.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68d931a54006cfe97f15053cdbdc92b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/057d45f7ae1de65e509c6ab944105759.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004f3762d48fc39c436a96aeba7145fc.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/262e765d5499aee5cf53ff34c280c438.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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适中
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名校
【推荐1】在锐角△ABC中,角A,B,C所对的边分别为a,b,c,已知向量
,
,且
.
(1)求角
的大小;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b325aa383b087682ab3fc7010c2c2503.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fce88ed7a84107a319359e450d44db79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a70d446e6fc756806938596817fd1bd.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/980ab4deb9e7f2bc9288787f5243a4d2.png)
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适中
(0.65)
【推荐2】已知函数
,
.
(1)求函数
的单调递增区间;
(2)设
的内角A、B、C,满足
且
,求角A,B的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abc48b8b65067b15e197adcc416cf8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb925a47e3d93fc09e50e8357f4e8620.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e04020b327815b191d0c1a9591aa1d90.png)
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【推荐3】函数
,
.
(1)把
的解析式改写为
(
,
)的形式;
(2)求
的最小正周期,并求
在区间
上的最大值和最小值;
(3)把
图像上所有的点的横坐标变为原来的2倍得到函数
的图像,再把函数
图像上所有的点向右平移
个单位长度,得到函数
的图像,若函数
在区间
上至少有30个零点,求m的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fe7c872c93c08183f30683e3a58ae53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
(1)把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5e2a383cb47eb87493e86c8c40caf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35e11e607c4dc5eaeb067c738b1ea7d7.png)
(3)把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2380418bca9ec15393a8dfcaa51b0d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f786a5701dc1a8a015e8843c3360151b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd05015979e4a35ba5ff6a51167d8e45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbae0d22d931ac42b565c7990764a2c1.png)
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解题方法
【推荐1】在
中,角
,
,
所对的边分别是
,
,
,且
.
(1)求
的值;
(2)若
,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/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/ceba46526c1a7df5929c00cd257dba3c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316eaa793af788c9728e255e94407f6f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b71812e0762c0aaffb51cfef66156567.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
【推荐2】已知函数
的最小正周期为
.
(1)求
的值;
(2)求函数
在区间
上的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/566d11142ae84be3c1a395d227e1c1eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e09cae626a23a18de45be09f80fe01ca.png)
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适中
(0.65)
名校
【推荐1】已知
,函数
.
(1)求
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内的单调递增区间;
(2)若函数
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的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/addb779ee3571032613ea7bf1a96d395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7aa1233d7a93113281594c41f25c7db.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/439ee32231e4e6f96d26117a0adf736e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81b17dbc42bd6c6f4866981d41adc559.png)
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适中
(0.65)
【推荐2】如图,以坐标原点
为圆心的单位圆与
轴正半轴相交于点
,点
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,
.
![](https://img.xkw.com/dksih/QBM/2016/7/4/1572876590702592/1572876596953088/STEM/6671f64201cf4110b7e1108871ea0b53.png?resizew=245)
(1)求
的值;
(2)若四边形
是平行四边形,(i)当
在单位圆上运动时,求点
的轨迹方程;(ii)设
(
),点
,且
.求关于
的函数
的解析式,并求其单调增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4cf40b6cf2051622c0a52e84710c138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b353ab13ddd4f3f60a8356879f7c4c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec6ce73c6786d50028addff089bbb64.png)
![](https://img.xkw.com/dksih/QBM/2016/7/4/1572876590702592/1572876596953088/STEM/6671f64201cf4110b7e1108871ea0b53.png?resizew=245)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d211fb5dd88b51fd26aff9f694b5a6f2.png)
(2)若四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8501d0d0917907b3b1a3d73516a1d4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ff139f605ee0df463ad9f64089e542.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49be008a6f00e462e1bb5e6d4dbf9a36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c846ac5f5576ebb3fb28bba8012f390.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2d9b7bb140e94e2d5975be3c2d1012f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd288d4152caf5fc8187a1a901c8949f.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
【推荐3】已知函数
.
(1)求函数
的单调减区间;
(2)在
中,角
的对边分别为
,
为边
上一点,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4de7702518efda6bd90edd13b2316f45.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f04b9f5c1efbf72f34c9a92e7e49c324.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec04bd4afbacd08aa71816d32a361c0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/118fcd809ec88560d91ab125665b424b.png)
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