sine
US /saɪn/
UK /saɪn/
名詞
正弦
in a right-angled triangle, the ratio of the length of the side opposite the angle to the length of the hypotenuse
範例:
•
The sine of 30 degrees is 0.5.
30度的正弦是0.5。
•
We need to calculate the sine of angle A to find the height.
我們需要計算角度A的正弦來找到高度。