22-23高三上·广东深圳·阶段练习
名校
1 . 如图,在平面四边形
中,
,
,
.
![](https://img.xkw.com/dksih/QBM/2022/10/16/3088975809806336/3091133908926464/STEM/3d0c4ec04470454ca9c12224b6735ed4.png?resizew=189)
(1)若
,求
.
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/111eb6cb6adbe30801d1918319efed06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/894e0ef77688f6c1f6aabda0fc6d4105.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cdb21b98bf2cf43688ecd7145cb919c.png)
![](https://img.xkw.com/dksih/QBM/2022/10/16/3088975809806336/3091133908926464/STEM/3d0c4ec04470454ca9c12224b6735ed4.png?resizew=189)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/641984e62c6c692e20a3aa67263d1d45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16affeff06ffc72fbaf30c7a3f00cdbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
2 . 已知
中,角A,B,C所对的边分别为a,b,c,其中
,
.
(1)若点D为
的中点且
,求
的余弦值;
(2)若
的角平分线与
相交于点E,当
取得最大值时,求
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ff214d99784c6b23b7784bdaf3ed37a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348551d9ea36d82fab80ae54df9d6c89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13bfc9b6abd26d80a8db9be923113842.png)
(1)若点D为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44757b51f83955ac40714b8908f47ec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1d78b22f15c15705e016ef8c12620e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1d78b22f15c15705e016ef8c12620e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ab1267bd66a8041ee09a794189c9ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
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解题方法
3 . 在
中,内角A,B,C所对的边分别为a,b,c,且
.
(1)若
,求C;
(2)若D为BC边上一点,且
,AD=3,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c591008fa524c31d4d02a93c563db336.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c5cd6ce30ac70cd343334139c1a478.png)
(2)若D为BC边上一点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbc81842fc77feb29905f768a40246c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
解题方法
4 . 在
中,角A,
,
的对边分别为
,
,
,角A,
均为锐角,已知
.
(1)若
,求
;
(2)若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/382dada31eb298ec319350891241fc1e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c106915873fcb8d6b21c7fa80d393ad2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9adb9fd694606f1fb640f28acd3ecb4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2022-10-11更新
|
793次组卷
|
8卷引用:河北省石家庄市十五中2023届高三上学期期中数学试题
22-23高三上·江苏南通·阶段练习
名校
解题方法
5 . 在
中,角
的对边分别为
.已知
.
(1)求角
的大小;
(2)若
为线段
延长线上一点,且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e2557d6c0eeb8e56c84db1c4931c0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f13a05f5aca98574bb1f927123490de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcbd974695b78285590ed00b034bf4b6.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ca836b2c48775b06b437ba25bd2c4ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa1f33a77e2be0cd0e1c70c8f1e05412.png)
您最近一年使用:0次
2022-10-10更新
|
834次组卷
|
5卷引用:河北省2022-2023学年高三上学期期中学业水平诊断数学试题
河北省2022-2023学年高三上学期期中学业水平诊断数学试题(已下线)江苏省南通市如皋市2022-2023学年高三上学期教学质量调研(一)数学试题江苏省南京市第十三中学2022-2023学年高三上学期教学质量调研(一)数学试题江苏省南京市中华中学2022-2023学年高一下学期期中数学试题江苏省镇江市扬中市第二高级中学2023届高三下学期考前模拟数学试题
6 . 已知函数
.
(1)当
时,求
的单调递增区间;
(2)设函数
,若
是
的零点,直线
是
图象的对称轴,且
在区间
上无最值,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9bb89b8412601f6743deee469f99700.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9e1cd7b889d91f89ca1e39101811676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a328d3682ef776727689a82bd6431041.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b7442b37570f882b1b7bafbb2459bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7de633b2c143b9f76b29cde1c6ffce71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/555fe9710c319e7ce4d374bfc196872e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
您最近一年使用:0次
解题方法
7 . 已知
.
(1)求
的值;
(2)若
,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/708d04a90d23a2e0b710022bb82fe171.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3db551080f682a9e10f924db4753c4d0.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d680a164aac9fe9d5d3950244fb8cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/908f3204ad140edd785d2ef9f198574c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
您最近一年使用:0次
名校
8 . 如图,在
中,D为
的中点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/c2d9343d-e911-46e0-a8d0-868faa5cb0a0.png?resizew=184)
(1)证明:
;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02f03ba3a932b3f66ca49514b14ddae7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/3/c2d9343d-e911-46e0-a8d0-868faa5cb0a0.png?resizew=184)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9124f17d0e3d8c43322940074976e670.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f32232d1c54a590ab73e0ba69ec8fd55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/395c8d0c2d490ffd4d6aadfb3517f9ec.png)
您最近一年使用:0次
2022-10-01更新
|
1358次组卷
|
2卷引用:河北省示范性高中2023届高三上学期第一次调研数学试题
名校
解题方法
9 . 已知直线
与x,y轴的正半轴分别交于A,B两点,O为坐标原点,且
的面积为4.
(1)求m的值;
(2)若
,点E,F分别在线段OA和OB上,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c74c0ed5d1204816d33bccb9e31c140a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
(1)求m的值;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4754fbe523ca63eba3810a3f88f37df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/179b69907addaf82ae3ac4054bf8286d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5514a14f65f15ecf4078f201403df438.png)
您最近一年使用:0次
2022-09-29更新
|
311次组卷
|
2卷引用:河北省保定市部分学校2022-2023学年高二上学期第一次月考数学试题
解题方法
10 . 在
中,角A,B,C的对边分别为a,b,c,已知
.
(1)求角A;
(2)若点D满足
,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e34d95a91292a9fc8903321b69d11bf.png)
(1)求角A;
(2)若点D满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc68cf14b98405a68928294180db254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
您最近一年使用:0次