Trigonometry
01
三角法, 三角法の分野
a branch of mathematics that deals with the relationships between the angles and sides of triangles
例
In trigonometry, the sine function ( sin ) relates the ratio of the length of the opposite side to the hypotenuse in a right-angled triangle.
三角法では、正弦関数（sin）は直角三角形の対辺の長さと斜辺の比を関連付けます。
