三角 余弦 计算器。 输入输入角度。 在组合框中选择度数（°）或弧度（rad）的角度类型。 按 = 按钮计算结果。 © 2025 RT | 关于 | 使用条款 | 隐私政策 | 管理Cookies. 免费在线余弦计算器。 cos（x）计算器。

sin(0°)=0.000000,cos(0°)=1.000000,tan(0°)=0.000000. sin(1°)=0.017452,cos(1°)=0.999848,tan(1°)=0.017455. sin(2°)=0.034899,cos(2°)=0.999391,tan(2°)=0.034921

3 days ago · cos计算器是一款专为数学学习和工程计算设计的在线工具，它能够快速准确地计算余弦函数值。 用户只需输入角度值或弧度值，即可得到对应的余弦值。 无论您是在解决三角函数问题，进行物理分析，还是在工程设计中需要余弦值，cos计算器都能为您提供便利。

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Cos 55 degrees is the value of cosine trigonometric function for an angle equal to 55 degrees. The value of cos 55° is 0.5736 (approx) What is the Value of Cos 55 Degrees in Terms of Cot 55°? We can represent the cosine function in terms of the cotangent function using trig identities, cos 55° can be written as cot 55°/√ (1 + cot² (55°)).

输入-1到1之间的任何余弦值，找到相应的角度（以弧度或度数表示）。 使用这个双曲余弦计算器计算任何数字的双曲余弦。 输入一个值，立即获得准确结果。 适用于数学和工程应用。 使用 …

Jan 4, 2008 · 2015-11-03 cos55°等于sin多少度？ 怎么转换的？ 40 2017-02-26 cos55度的值为什么等于0.573 2 2020-07-13 sin155°sin55度+cos25度cos55如何算？ 1 2010-04-28 cos30度等于多少？ 1458 2016-08-17 cos多少度等于0.5597 2 2014-12-03 cos55度和sin36度的大小关系是 2015-11-04 sin35度等于cos多少度？ 怎么转换的？ ...

Both the cosines and the powers of i recur with period 4, so you only need to compute the first four terms. There are eleven of the first and ten of each subsequent. So \cos 45^\circ=\frac {\sqrt 2}2\\ i\cos 135^\circ=-i\frac {\sqrt 2}2\\ i^2\cos 225^\circ=\frac {\sqrt …

Feb 17, 2017 · To obtain 55 degrees in radian multiply 55° by π / 180° = 11/36 π. Cos 55degrees = cos (11/36 × π). Our results of cos55° have been rounded to five decimal places. If you want cosine 55° with higher accuracy, then use the calculator below; our …

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