已知向量
,
.
(1)若
,求
的值;
(2)记
,在
中,角A、B、C的对边分别是a,b,c,且满足
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9541e562bbbc11dfd49aca2ee2f9ede1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2200d8d4311fbcc8ad40406dd0f5b106.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e8889d533392d0f8d6a298791a25b08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bcf312cd20caa0a4d1b13e877223f48.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2104745f6548c40d42d046514e78df46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95d37b2f8d5da8eaa07442b941017c1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38e3d87be9f706832ef25537d78a201b.png)
22-23高三上·江西萍乡·阶段练习 查看更多[3]
更新时间:2022-09-29 14:58:55
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解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐1】已知函数
.
(1)若
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(2)若
,求函数
的单调区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35fed6bd547fd095d3594dda2b87c05c.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c87874458fabe50aff5e19d586d5d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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适中
(0.65)
【推荐2】已知函数
.
(1)求函数
在
上的值域和单调递增区间;
(2)若关于
的方程
在
上有两个不同的实数解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c68e6d6050b1c7e427865c9696cd154.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3b4874cf36b6082ba4d539ff3ee69a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.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1】已知
.
(1)求
的周期及对称轴;
(2)若
,求
单调区间及最值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac17727ccfaaaf6dea3245421d2f4cfe.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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解答题-问答题
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适中
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解题方法
【推荐2】已知
.
(1)求
的值;
(2)若
,求
及
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b48c84f110e30cd3d861bc72f1888c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bb5bbd024a9f8edb52f5133d59aa70f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee974117bc7b5bcd0a7a6f9145e688e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f90c4754e6b6fc862d72943fb35569.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
解题方法
【推荐1】在
中,内角A,B,C的对边分别为a,b,c,且
.
(1)若
,
,请判断
的形状;
(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/4c5b8ff06f0bc798144f4dab6ab127ce.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7de660e3b7dc527db8fb817e85f0a.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)
名校
【推荐2】已知
内角
的对边分别是
,若
,
,
.
(1)求
;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40f01eb791aa2ec0ab9ec823fd322c24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b173c1d7c25cf5d55bb4f546d0baefe1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
解题方法
【推荐1】向量
,(
、![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
且
、
、
均不等于
).
(Ⅰ)、求
的最大值;
(Ⅱ)当
且
时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f13f5758455364f1e7999397d034550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f57b5a7c0283d2638c7b5a0baba4040.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf1fcb576229db96b0347080ff505b18.png)
(Ⅰ)、求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0be60ba20ec289f46af9006919315b99.png)
(Ⅱ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/076559f08d17fb25e82886e791719e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/974d01cbaef3f02e6f3a2ae970f2d3a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2359e991570543f3f977bc1ef877287d.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
解题方法
【推荐2】已知关于
的实系数一元二次方程![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6700148179e5b96f7f289af6a5c6c8.png)
(1)若
,求方程的两个根;
(2)若方程有两虚根
,
,求
的值;
(3)若方程的两根为
,其在复平面上所对应的点分别为
,点
关于
轴的对称点为
(不同于点
),如果
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6700148179e5b96f7f289af6a5c6c8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
(2)若方程有两虚根
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90d860cb86e1467ac24010aecfc7a425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f93f745b1271db17007998278e98a475.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若方程的两根为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/126c23fdab0cb0bb31f119949ba3d20a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
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适中
(0.65)
【推荐3】已知
,
,且
.
(1)求
在
上的值域;
(2)已知
,
,
分别为
的三个内角
,
,
对应的边长,若
,且
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c5428b35d2eef9000c108d8305edd9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1e97a39b5db6b023ae3617372a0ec03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2104745f6548c40d42d046514e78df46.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de694144e7993d8a34e6c5d98664d031.png)
(2)已知
![](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/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/e65bc270eb879abc0bd8684bed9b4096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd454e69236d3ece1583420fb552e07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e876b53581904085bbc4e00fad0c718f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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