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解题方法
1 .
的内角
的对边分别是
,且
,
(1)求角
的大小;
(2)若
,
为
边上一点,
,且
为
的平分线,求
的面积.
![](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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/387463196c8e89ae8e780423ccb01393.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcdb7a488910743dc5c63afb394b87e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714cc3707bba3bfdb56e251999be8592.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2022-09-08更新
|
4692次组卷
|
9卷引用:贵州省遵义市2023届高三上学期第一次统一考试数学(文)试题
贵州省遵义市2023届高三上学期第一次统一考试数学(文)试题贵州省遵义市2023届高三上学期第一次统一考试数学(理)试题吉林省实验中学2021-2022学年高三下学期最后一次模拟考试数学(理)试题江西省赣州市赣县第三中学2023届高三上学期10月月考数学(理)试题吉林省长春市第八中学2022-2023学年高三上学期9月月考数学试题湖南省邵阳市第二中学2023-2024学年高二上学期11月期中数学试题辽宁省瓦房店市高级中学2022-2023学年高三下学期期初考试数学试题安徽省合肥市肥东县综合高中2022-2023学年高三下学期开学考试数学试题福建省名校联盟全国优质校2023届高三下学期2月大联考数学试题
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2 . 已知向量
,
,
.
(1)若
,求
;
(2)若
在区间
上的值域为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76eb912e9c8b513f2114aff50ec9ad66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/484b366bc6027d0704ba10bad6e5bfa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9b2be07669f71882ef4307b9c929c9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c5a05a11f731194a845e68a0479ce4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914b6ca2933416cce4a52757f4c69072.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb114cfd5924ef8cfa8400359f909d50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
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3 . 已知函数
(其中
,
,
,
均为常数,且
,
,
)的部分图像如图所示.
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973577752215552/2981466562723840/STEM/03fce073-34f6-4693-9c9d-b3a6ae8e6083.png?resizew=232)
(1)求
的解析式;
(2)若
,
,求
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1d5384fa9d0675a497caf824f2cc2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6b57132ce86c15b522f06183b7525d4.png)
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973577752215552/2981466562723840/STEM/03fce073-34f6-4693-9c9d-b3a6ae8e6083.png?resizew=232)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faa20b354c79809b1ea68d60be4a3a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a125f335356df4e0ab28870b91ec2a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
您最近一年使用:0次
2022-05-17更新
|
1020次组卷
|
4卷引用:贵州省遵义市第四中学2021-2022学年高一下学期第一次质量监测数学试题
贵州省遵义市第四中学2021-2022学年高一下学期第一次质量监测数学试题浙江省杭州学军中学2022届高三下学期5月适应性考试数学试题(已下线)专题4-4 三角函数与解三角形大题综合归类 - 3四川省巴中市通江中学2022-2023学年高二上学期10月月考理科数学试题
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4 . 如图,在平面直角坐标系
中,设角
,
的终边分别与单位圆交于
,
两点,且原点
为单位圆的圆心.设角
的终边绕点
逆时针旋转
后与单位圆交于点
.
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973577752215552/2981466562699264/STEM/d2216906-f1b0-45df-9a32-e05ae1073eda.png?resizew=240)
(1)求点
的坐标;
(2)记
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c02b54dc6b3e1bb6544f47d4c8743fcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797e67927616b141ed7c6b83f8b6f4fb.png)
![](https://img.xkw.com/dksih/QBM/2022/5/6/2973577752215552/2981466562699264/STEM/d2216906-f1b0-45df-9a32-e05ae1073eda.png?resizew=240)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797e67927616b141ed7c6b83f8b6f4fb.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f7d37407a6b75077ba1acfdaeb8bc6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3aec56b5fc729eb55aaac77c6f4a099b.png)
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5 . 函数
在
的所有零点之和为
,则实数
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d127d60ec109b42ca760ea61ade0d3d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37440b57fe2ffc13f2a873e38f55d29b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5284586189e1b188acb309af4a5ec57e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
6 . 若
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6834a22cc57e6dc022c74eae7dac76.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89ff68ce911cfba7860c1e6ab8258f98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5fdec18642892e189c93a15b0d91cee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33f62cb0a85d71f431a61db26ce2003b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6834a22cc57e6dc022c74eae7dac76.png)
您最近一年使用:0次
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解题方法
7 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4fb92cf9dfd26cfda9db58ad4473e70.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18f10e60586f7d3b54da8590d6417086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4fb92cf9dfd26cfda9db58ad4473e70.png)
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8 . 在半径为
的圆中,一条弦的长度为
,则这条弦所对的圆心角是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c9048994ab85178e3dfc3f84f37efb3.png)
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9 . 已知函数
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d28a1b6b939ff0aef131ad1d7f22c49.png)
A.![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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10 . 在
中,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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