名校
1 . 在
中,内角A,B,C所对的边分别为a,b,c,已知
.
(1)求角B;
(2)若
,D为
的中点,求线段
长度的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/459b8a0b6557849a54b95ea52f1cfc55.png)
(1)求角B;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
您最近一年使用:0次
2 . 向量
,
,其中
,且
,若
的最小正周期为
.
(1)求
的值;
(2)求
在
上的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/345b026b665ab89ed51afd73c6488ee6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0d85e79d041f3128fe47228c49e17a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02f7d08d10754ff3903d139768f40530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55cfcbb5c5950e18a8452b38bb17036.png)
您最近一年使用:0次
3 . 已知函数
.
(1)求
的最小正周期及
上的最值;
(2)求
的单调递减区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f042d82843e6c5137b6fab66fb8b2a84.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b77857e15ae11fc94a5e33bfc12d26.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
2021-01-23更新
|
759次组卷
|
3卷引用:河北省正定中学2020-2021学年高一下学期开学考试数学试题
名校
解题方法
4 . 已知函数
,若将函数
的图象平移后能与函数
的图象完全重合,则下列说法正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4a3efde441ff4dbe60f5bdd7361d815.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/325f9e2f7784ebdd64292e805884dfa9.png)
A.函数![]() ![]() |
B.将函数![]() ![]() |
C.当![]() ![]() ![]() |
D.当函数![]() ![]() |
您最近一年使用:0次
2020-11-28更新
|
909次组卷
|
4卷引用:河北省正定中学2020-2021学年高一下学期开学考试数学试题
解题方法
5 . 已知函数
.
(1)若
为钝角,且
,求
的值;
(2)若
,
均为锐角,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f5adb1f7879963b37dd6e326c16af25.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/694d1ab90e2d050af6cd0250051ac566.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ac093c7f63943402694f2de7aabc75b.png)
(2)若
![](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/6c52740e831cfbff471bc961623ddc4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2f11702dad2d3204ae56294509742ee.png)
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2022-07-05更新
|
336次组卷
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4卷引用:河北省秦皇岛市青龙满族自治县实验中学2022-2023学年高一下学期开学考试数学试题
名校
解题方法
6 .
的内角A,B,C的对边分别为a,b,c,已知
.
(1)求B;
(2)若
,
,求a.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/385819867059097f82caabfffd161cd4.png)
(1)求B;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b903021571c1b57943a1a3274217654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
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2023-09-26更新
|
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3卷引用:河北省秦皇岛新世纪高级中学2023-2024学年高二上学期开学考试数学试题
河北省秦皇岛新世纪高级中学2023-2024学年高二上学期开学考试数学试题(已下线)陕西省西安市铁一中学2023-2024学年高三上学期第二次月考理科数学试题变式题15-18陕西省咸阳市武功县普集高级中学2024届高三上学期第4次月考数学(理)试题
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解题方法
7 . 若
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4da9cb19baefe57a723ee444c35fa850.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44128861d7bbe32c9cffac8d6b5bff3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1746f194b684234a923110fe4a9a4a2e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-03-11更新
|
346次组卷
|
3卷引用:河北省邢台市第二中学2021-2022学年高一下学期开学考试数学试题
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解题方法
8 . 已知函数
.在下面两个条件中选择其中一个,完成下面两个问题:
条件①:在
图象上相邻的两个对称中心的距离为
;
条件②:
的一条对称轴为
.
(1)求
;
(2)将
的图象向右平移
个单位(纵坐标不变),得到函数
的图象,求函数
在
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/909833ddf44c053604e2d0b8a72bd8b7.png)
条件①:在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
条件②:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24db7b603aebdee8e298d1fe49c848e1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.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/4337d2e50dcb645fea83d882e85e7145.png)
您最近一年使用:0次
9 . 在
中,角
、
、
所对的边分别为
、
、
,且满足
.
(1)求角
的值;
(2)若
且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.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/d1e9bcf9b3c02320cc60e1713f7ad48e.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/56eee45baf8ec905a2f0fb79d482ed68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e8c44569d42ccfba2fe286b53a9090d.png)
您最近一年使用:0次
2019-09-29更新
|
1132次组卷
|
3卷引用:2019河北省张家口市高三上学期入学摸底联合考试数学(理)试题
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10 . 已知
,
均为锐角,
,
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7dc4a8ca221732931bb72442a15df14.png)
______ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da2d64d48b7706bcea8c02d7a476a3de.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/bc4fe21d1c7dbb6365b3026f6a849896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c20b5cd8fe7f1e0fe95ac643f78df22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7dc4a8ca221732931bb72442a15df14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da2d64d48b7706bcea8c02d7a476a3de.png)
您最近一年使用:0次
2022-03-11更新
|
300次组卷
|
2卷引用:河北省邢台市第二中学2021-2022学年高一下学期开学考试数学试题