2012年3月6日 · COS 请参阅 返回给定角度的 余弦 值。 语法 COS (number) Number 为需要求余弦的角度，以弧度表示。 说明 如果参数的单位是度，则可以乘以 PI ()/180 或使用 RADIANS 函数将其转换成弧度。 示例 如果您将示例复制到空白工作表中，可能会更易于理解该示例。 操作方法

Use this cos calculator to easily calculate the cosine of an angle given in degrees or radians. The cosine is encountered in geometry problems involving right triangles, circles, and others where cos (x) can be calculated.

This calculator allows you to find the cosine of an entered angle. When entering an angle, the calculator will immediately display the value of its cosine. You can use both degrees and radians. Below you can find important information related to cosine.

k = ...,-2,-1,0,1,2,... Cosine calculator online. cos (x) calculator.

The trigonometry calculator is the advanced tool that simplifies trigonometric expressions, equations, and problems efficiently and accurately. Whether we need to calculate the sine, cosine, tangent values, or just solve complex trigonometric identities, a trigonometry calculator can provide quick and very precise answers.

2022年12月20日 · 正弦、余弦和正切是 三角法 里的主要 函数，它们是基于一个 直角三角形而建立的。 英文释义： 正弦 （sine）, 余弦 （cosine） 和 正切 （tangent） （英语符号简写为 sin, cos 和 tan) 对边（Opposite），斜边（Hypotenuse），邻边（Adjacent） 弧度（radians） 如图所 …

Trigonometry Calculator with Degree or Radian Mode for Basic Trig, Inverse trigonometry, and Reciprocal Trig Ratio

Use the cos calculator to find the cosine of an angle in radians or degrees, plus learn the trigonometric formulas and steps to solve it.

Use this tool to compute cosine for a measured angle, in either radians or degrees.

Enter the angle in the designated field, and the cosine calculator will quickly compute its cosine trigonometric ratios. The online free cosine calculator helps in calculating the cosine value of the given angle in degrees, radians, mili-radians, and π radians.