在
中,内角A,B,C所对的边分别为a,b,c,已知
,
.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942245aece46d6fa4a771afe4ff05929.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc3fcb516ee06d76e992060334f3298b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1311f32edf13f8caee5edb03f24a7ba.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f86af773d3502505588ddf5c6b82788.png)
22-23高三上·山东青岛·期中 查看更多[3]
更新时间:2022-11-24 14:59:39
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相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知
的内角A,B,C的对边分别为a,b,c,
.
(1)求A的值;
(2)若
,BE为边AC的高,AD为边BC的中线,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/301aa2a4867473bf8894ed3c9c5838b4.png)
(1)求A的值;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/301d5480b68deb585e728d2134d9b2c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0b6c23104ed86d2fb8716141720ac2a.png)
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适中
(0.65)
【推荐2】已如
,
是第三象限角,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53899d78d8b73e72ac474ddbe8243736.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be4f33fca4f376fc467b50cb24f90a43.png)
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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
的最小正周期和单调增区间;
(2)设
,若
求
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac51c0d61ca80f4adcbbb1b8d0dd0980.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc8d23a542f27fe8b9dba1bf78a44c7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11300fa7f995c2a62a7b32667fc4dc69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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适中
(0.65)
【推荐2】设函数
满足:对任意的实数
有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b343fbdd6ce9acf6665d33b88eb56a.png)
(Ⅰ)求
的解析式;
(Ⅱ)若方程
有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b343fbdd6ce9acf6665d33b88eb56a.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a9c7fece3106f512f284a58516b684.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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(0.65)
名校
【推荐3】已知函数
,其中
,且
.
(1)求函数
的单调递增区间;
(2)若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/837cb7d807b9a863e23043c3735bd036.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a5f32e1b3f9d9eaf849d8904ad7060.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a59db14c636c35ef5c1bfafacfdaefc7.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cefa85a884ffb839655177019bbcd85d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2a971697b9ddeae1bd478a90fee84d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4b3eccbea1ab2915376a2df4506cec2.png)
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适中
(0.65)
【推荐1】已知
的内角为
,
,
,它们的对边分别为
,
,
,已知
.
(1)求角
的大小;
(2)若
,
,求
的面积.
![](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/af30a92eda72d7b4daf2dc17c0c078af.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9eba77783b1b61d0c95b3901e962268c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/552616d7f6b6bc24e4c4e885700e6bdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
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(0.65)
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解题方法
【推荐2】在
中,
、
、
分别是角A、B、C的对边,
,
.
(1)求
;
(2)记
的面积为S,若
,求
的周长l.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/ffa664a012c404d601f1e360dbb58a31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4037561c629fd07503c6803e1eb62fb6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/848f5648ee1f059fea79f662b5dfae58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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适中
(0.65)
【推荐1】如图,在四边形ABCD中,
,
,AC与BD相交于点E,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/20/3a4af698-e93a-41a7-b923-7d46a0babbad.png?resizew=189)
(1)求AE的长;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/970bd8c6012979f91c4b370fad352d47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57c6b0a6cb307c4c02f503831862f7d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c47fb4f0dbd619fecc5d69a8f44c2ac9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce45219c1c0c50d8dfcd8d156009652f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/20/3a4af698-e93a-41a7-b923-7d46a0babbad.png?resizew=189)
(1)求AE的长;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
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解答题
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适中
(0.65)
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【推荐2】如图,在平面四边形
中,
,
,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/31/6e2c06ba-1dbb-46d7-a01a-4e1a74bbafd5.png?resizew=187)
(1)求
的大小;
(2)求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09c6c11ccee199cb04792115cee11fe0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59ab1717ca7aa19998a47367bc77803c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a2484647bcbd1a8023f851b497884d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305a88d4e0249bd16d48eda01331d2d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a6f4d39a5bc26ba0a2c20fc499c0d91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6184f3b929dda3c1b3b35b9aec448118.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/31/6e2c06ba-1dbb-46d7-a01a-4e1a74bbafd5.png?resizew=187)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131266f8288996ea76f1446e2d5de6e1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
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