![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64b3ab8f344f89178cb092e001afa280.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2709ca478fb15ea08e8aa55328eae8e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b104090ea2ac34be58a76a4e0e95cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df1d9b712b639c8b6809c9f3ae03706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0af169e1a6c6c59af61c9d01f1d1dd26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56bae4125cdc212fa5f24cbe809e3074.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64934810bd057162d3a82395a3e724c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e53c28d14bd8516c8ad61abdd8d7869e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/999ba9863f9c9ba7e8a20f4ab0dbfab7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccf768f02657997a8630023854555778.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae9ab1621cd729a18b2173e95d557376.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54eba004c3cf1aca04c71d3c6ac00cbe.png)
A.![]() | B.![]() | C.![]() | D.不能确定 |
【知识点】 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ffb08e42065adec73de239cf330c994.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/bb4d2361-4fc7-447b-af78-06d445bfe3cb.png?resizew=223)
A.5 | B.6 | C.8 | D.10 |
【知识点】 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f84c25be87101d6aebeedc9b91febb70.png)
![](https://img.xkw.com/dksih/QBM/2018/7/13/1987627396997120/1988213233369088/STEM/9a2bbfe9-1754-4f40-83b6-6395be1aafa0.png?resizew=337)
A.![]() | B.![]() | C.![]() | D.![]() |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72a909dcb08221aa2b09e81a250c68b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e7835dc7faa21a4a8e0acf48de3d01.png)
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 三角函数在生活中的应用解读 求sinx型三角函数的单调性
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b894232c8087a626bdfaec266cbeb0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb9b65c51e37f40211b876be02105701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb9b65c51e37f40211b876be02105701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21033dcaa34594dfedff1b6917057e08.png)
![]() | 0 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 |
![]() | 2 | ![]() | 1 | ![]() | 2 | ![]() | 0.99 | ![]() | 2 |
则最能近似地表示表中数据间对应关系的函数是( )
A.![]() | B.![]() | C.![]() | D.![]() |
【知识点】 y=Asinx+B的图象解读 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5a1b9cb097bedf09f09cf3bf42fde7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
A.16时 | B.17时 | C.18时 | D.19时 |
【知识点】 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c649325e9926c82bf2922191789b84df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/a9a90c84-9bb8-4cc1-8a70-cace56aad764.jpg?resizew=191)
A.![]() | B.![]() |
C.![]() | D.![]() |
【知识点】 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7490886e2807c7b8a4fa57d99c4dc3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/2019/6/25/2233200715710464/2238761771982849/STEM/1dda11b335e442b790c5fc6e40ad20cb.png?resizew=148)
A.37.5分钟 | B.40.5分钟 | C.49.5分钟 | D.52.5分钟 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6316e0e6da742e9b035d8f2cc91a4dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/240dac21d26dac11529a7a5c96a9b443.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
【知识点】 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c64a66fbe72a61b249ae4ca4d91b7cf.png)
![](https://img.xkw.com/dksih/QBM/2020/8/22/2533396560437248/2536225013735424/STEM/bb2015de38984f92a1a61622e38d6a1a.png?resizew=201)
A.y=sin![]() | B.y=sin![]() |
C.y=sin![]() | D.y=sin![]() |
【知识点】 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1dba1206c77ab7d034e5ed86a63ede0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/238dccfbd5e8c3031f2f86088739ece1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb9b65c51e37f40211b876be02105701.png)
![](https://img.xkw.com/dksih/QBM/2017/2/6/1619484736978944/1619484737265664/STEM/6b9a196affdc4e26ac4825a6ce3835f3.png)
经长期观察,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb9b65c51e37f40211b876be02105701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0cfac4324cfb42516915a481a681e2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09905ffb3a353e3051b16bd6b72b237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09905ffb3a353e3051b16bd6b72b237e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/801662570192131235fd12b432f1f646.png)
A.6 | B.12 |
C.16 | D.18 |
【知识点】 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecfa330308f05f2eab0f409ddaf534b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aebb9595cfebe608e2b3ec06c10421dd.png)
![](https://img.xkw.com/dksih/QBM/2018/5/20/1949583250472960/1950278081568768/STEM/fbe479c02ab940299ae981221a60eee3.png?resizew=105)
A.![]() | B.![]() |
C.![]() | D.![]() |
【知识点】 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25e01a0fff0a45e18134f86d70f2a04b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/21/e3cd62ff-7c9f-46a1-931d-1874e63ea9e2.png?resizew=151)
A.该函数的周期是16 |
B.该函数图象的一条对称轴是直线![]() |
C.该函数的解析式是![]() |
D.这一天的函数关系式也适用于第二天 |
E.该市这一天中午12时天气的温度大约是27℃ |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a9eed64d225267a58cd001db67e2a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aeb9a94e392f6759b18abed89aacc5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56b253c48e7f47a206eb033e16952f41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ecd76012d1b9c5e9fec6221e6e489c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c98c59cd4749afdd21e73529fc84323.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e56389d42b521a946cdb8d6da182e37.png)
A.![]() | B.![]() | C.![]() | D.![]() | E.![]() |
【知识点】 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9f50605db5d5f8f3a01ee8e474a112.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/9dc6b3ac-26c4-47cd-a8b5-c253228ba6cc.png?resizew=130)
A.点![]() |
B.在水轮转动的一圈内,有20秒的时间,点![]() |
C.点![]() ![]() ![]() ![]() |
D.当水轮转动50秒时,点![]() |
【知识点】 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b5fa56c16fc4d9aa586163a401f47c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b06e95b57b7a81cd81d05557a11fa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd3c988d875438535244ee2b092a779b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104dcdf30ffe4fb92c60d0e016aa690d.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/7d07c1939b2d18fd8e3001a50d929544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
【知识点】 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://img.xkw.com/dksih/QBM/2013/7/18/1571292146900992/1571292152184832/STEM/758c25cb-34a5-40ee-a36b-9a6f230691ef.png)
【知识点】 弧长的有关计算解读 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa088a4729226b696c536845791d4c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9bd03f0b17b4e12a91dd1a5e15e6f55.png)
(1)求该实验室一天当中上午10时的温度;
(2)若某实验需要在不低于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1e6c19d2226aef14142db9d6f0353d.png)
【知识点】 利用给定函数模型解决实际问题 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7362670cbc15810c5470f348e0c18c5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/343af894b2b665d9a98d34a0fb888750.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/dfdbe164-81a4-460b-9b09-0d4bdff47420.png?resizew=194)
(1)分别写出该商品每件的出厂价函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a09764b5e4c57065cfff79d00e07f2.png)
(2)问几月份的销售盈利最大?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/238dccfbd5e8c3031f2f86088739ece1.png)
![]() | 0 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 |
![]() | 10 | 13 | 9.9 | 7 | 10 | 13 | 10.1 | 7 | 10 |
经过长期观测,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb9b65c51e37f40211b876be02105701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655580f983af57518cb3298d6927abed.png)
(1)根据以上数据,求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb9b65c51e37f40211b876be02105701.png)
(2)若船舶航行时,水深至少要11.5米才是安全的,那么船舶在一天中几个小时可以安全的进出该港?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9f50605db5d5f8f3a01ee8e474a112.png)
![](https://img.xkw.com/dksih/QBM/2020/6/29/2494949667946496/2495337434791936/STEM/b9e0c2c1c28e472dab077b8f6c06721c.png?resizew=211)
(1)以水轮所在平面与水面的交线为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)在水轮转动的任意一圈内,有多长时间点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
【知识点】 解正弦不等式解读 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48869f39b255cff0f5c429ec1ab6d167.png)
(1)请写出小英的体力、情绪和智力节律曲线的函数;
(2)试判断小英在2019年4月22日三种节律各处于什么阶段,当日小英是否适合参加某项体育竞技比赛?
【知识点】 三角函数在生活中的应用解读
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da45c443af7994a26ffa9d8894e7262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45f4007c6c6b489ed9372fa0aecf088d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
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【知识点】 三角函数在生活中的应用解读