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arc cosine

/ɑːk ˈkəʊsaɪn/

翻译: 反余弦函数是三角函数中余弦函数的反函数,用于求余弦值等于给定数的角。

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phrase

/ɑːk ˈkəʊsaɪn/C1formalscientific
  • zh反余弦函数是三角函数中余弦函数的反函数,用于求余弦值等于给定数的角。

The inverse function of cosine in trigonometry, used to find the angle whose cosine is a given number.

  1. Inverse cosine functionC1formal

    The inverse function of the cosine, which returns the angle whose cosine is a given number.

    zh反余弦

    • The arc cosine of 0.5 is 60 degrees.
    • To solve the equation, you need to take the arc cosine of both sides.
    • The calculator has a button labeled 'arccos' for arc cosine.