cosine的意思、翻譯和例句

是什麼意思

「餘弦」是數學中三角函數之一,通常用於描述一個角的餘弦值。餘弦函數的定義是:在直角三角形中,餘弦值是鄰邊長與斜邊長的比值。餘弦函數在數學、物理和工程學中有廣泛的應用,特別是在波動、振動和週期性現象的分析中。

依照不同程度的英文解釋

  1. A function that relates to angles.
  2. A value that helps in understanding triangles.
  3. A measure of how adjacent a side is to an angle.
  4. A function used in trigonometry for angles.
  5. A mathematical function that helps calculate angles in triangles.
  6. A function that represents the ratio of the adjacent side to the hypotenuse in a right triangle.
  7. A periodic function that is important in various fields including physics and engineering.
  8. A trigonometric function that is fundamental in the study of waves and oscillations.
  9. A mathematical function that describes the relationship between an angle and the lengths of the sides of a right triangle.
  10. A fundamental trigonometric function essential for calculating angles and modeling periodic phenomena.

相關英文單字或片語的差別與用法

1:Cosine

用法:

在數學中,餘弦是三角函數之一,通常用於計算直角三角形的角度和邊長之間的關係。餘弦函數的值範圍在-1到1之間,並且在單位圓上定義。餘弦函數在物理學中用於描述波動和振動的行為,在工程學中也有重要的應用。

例句及翻譯:

例句 1:

餘弦定理是計算任意三角形邊長和角度的重要工具。

The cosine theorem is an important tool for calculating the lengths and angles of any triangle.

例句 2:

在單位圓上,角度的餘弦值對應於該角的 x 坐標。

On the unit circle, the cosine value of an angle corresponds to the x-coordinate of that angle.

例句 3:

許多物理現象,例如波動,都可以用餘弦函數來描述。

Many physical phenomena, such as waves, can be described using the cosine function.