Last Updated
：2026/01/03
サイン
Hiragana
さいん
Kanji
正弦
Noun
Japanese Meaning
数学（特に三角法）において、直角三角形の鋭角に対する正弦（sine）を表す量。角度に対応する比として定義され、三角関数の一つ。
Easy Japanese Meaning
ちょっかくのさんかくけいでかくのむかいのへんのながさをいちばんながいへんでわったかず
Chinese (Simplified) Meaning
正弦 / 正弦函数
Chinese (Traditional) Meaning
正弦 / 正弦函數
Korean Meaning
삼각함수의 하나인 사인 / 직각삼각형에서 각의 대변과 빗변의 비
Vietnamese Meaning
sin (trong lượng giác) / hàm sin
Tagalog Meaning
sine; punsiyong trigonometric / rasyo ng katapat na gilid sa hipotenusa sa tatsulok na may tuwid na anggulo
Sense（1）
(trigonometry) sine
（ romanization ）
Quizzes for review
See correct answer
サイン
See correct answer
Please calculate the value of the sine, which is one of the trigonometric functions.
Please calculate the value of the sine, which is one of the trigonometric functions.
See correct answer
三角関数の一つであるサインの値を計算してください。
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