1 . 欧拉公式
(其中i为虚数单位,
)是由瑞士著名数学家欧拉创立的,该公式将指数函数的定义域扩大到复数,建立了三角函数与指数函数的关联,在复变函数论里占有非常重要的地位.被誉为数学中的“天桥”.依据欧拉公式,下列选项正确的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e83fbbc5fbdc4887691d675a14691fa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/388d3d213a231cccf854a29eef611d01.png)
A.![]() |
B.![]() ![]() |
C.![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() ![]() |
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解题方法
2 . 定义函数
的“源向量”为
,非零向量
的“伴随函数”为
,其中
为坐标原点.
的“伴随函数”为
,求
在
的值域;
(2)若函数
的“源向量”为
,且以
为圆心,
为半径的圆内切于正
(顶点
恰好在
轴的正半轴上),求证:
为定值;
(3)在
中,角
的对边分别为
,若函数
的“源向量”为
,且已知
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/076359d10a87dee53d2d4661b94a0a59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92cae27fcabba8073b6e58c759b2cc14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92cae27fcabba8073b6e58c759b2cc14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/076359d10a87dee53d2d4661b94a0a59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892020e2a61a757cec9685d16c0926b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dafce249be1aeee0581417db4ce841db.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4faf5cf40aa7dcf614e00641053728b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e723e57753f0a4fe1ef8ca1aee0e2117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd8b12e3bed2aff0970b56787253bc90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeca565ad5dfdba18cf431dd3b84c57e.png)
(3)在
![](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/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c333a66f34c8175bc4bf13199e75abf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc18b71bd4ee31cd564ebbffbb1dd00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1db906824e53395f016622f21efdb11.png)
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3 . 函数
的周期是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8305de6e85c4c88c5fbeff4fc1a461eb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
4 . 函数
的最大值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75c728e3353bd76807c7181aab7f2640.png)
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5 . 已知
为坐标原点,函数
图象与
轴的一个交点为
,与
轴交于点
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9448bf1d6136b3a108e7ea60506ad39.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4991f5aea1d23a639bffc86a48b80243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4420ef2452903556b13d76a7b6adb90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9448bf1d6136b3a108e7ea60506ad39.png)
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6 . 已知
,
恒成立,则实数
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f63b8d7f1005987bfec6efcb4f5b7039.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8079b1c177693ac34c225431e1aa2fe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.1 | B.![]() | C.2 | D.4 |
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名校
解题方法
7 . 已知点
,点
为原点,则
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49d54bcff5ffecbd3e4dea284d273638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8840adf41cb679f98b8bcb81ef4afd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb8731c539ba9ecf87f2fd501b77fbef.png)
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5卷引用:江苏省连云港市海州高级中学2023-2024学年高一下学期期中学情调查考试数学试题
江苏省连云港市海州高级中学2023-2024学年高一下学期期中学情调查考试数学试题陕西省西安市第一中学2024届高三第十六次模拟考试数学(文科)试题(已下线)模型8 向量数量积问题模型(已下线)云南省曲靖市部分学校2023-2024学年高一下学期6月联考数学试题上海市闵行中学2023-2024学年高一下学期期末考试数学试卷
名校
解题方法
8 . 在
中,内角
,
,
所对的边分别为
,
,
,若
,则
的取值范围是______ .
![](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/3bf7e2bd3d020fb7394e0988fa4af6b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5830bf026e686d59ae1a774f7e44074f.png)
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4卷引用:江苏省连云港市新海高级中学2023-2024学年高一下学期期中考试数学试卷
江苏省连云港市新海高级中学2023-2024学年高一下学期期中考试数学试卷湖北省黄冈市浠水县第一中学2023-2024学年高一下学期期末质量检测数学试题(已下线)专题4 解三角形中的最值与范围问题【练】(高一期末压轴专项)(已下线)【高一模块一】难度3 小题强化限时晋级练(基础3)
9 . 函数
的值域是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fb0b715c2fcfdf8bc800aaa7f1aebbf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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10 . 已知向量
.
(1)求
的值;
(2)求
图象的对称轴方程;
(3)若
,求
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca1ceb88aa6d0e5964f77a543326efcc.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b87f4ef298bdeebf59a0d850aff72c.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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