Sinus (lotincha : sinus — „egrilik“) 1) trigonometrik funksiyalardan biri
s
i
n
x
{\displaystyle sinx}
bilan belgilanadi;
2) toʻgʻri burchakli uchburchakning oʻtkir burchaklari uchun
s
i
n
x
{\displaystyle sinx}
— burchak qarshisida yotgan katet uzunligining gipotenuza uzunligiga nisbatiga teng.
Burchak, x
sin(x )
cos(x )
Daraja
Radian
Grad
Aniq
Oʻnli kasr
Aniq
Oʻnli kasr
0°
0
0g
0
0
1
1
15°
1 / 12 π
16+ 2 / 3 g
6
−
2
4
{\displaystyle {\frac {{\sqrt {6}}-{\sqrt {2}}}{4}}}
0.2588
6
+
2
4
{\displaystyle {\frac {{\sqrt {6}}+{\sqrt {2}}}{4}}}
0.9659
30°
1 / 6 π
33+ 1 / 3 g
1 / 2
0.5
3
2
{\displaystyle {\frac {\sqrt {3}}{2}}}
0.8660
45°
1 / 4 π
50g
2
2
{\displaystyle {\frac {\sqrt {2}}{2}}}
0.7071
2
2
{\displaystyle {\frac {\sqrt {2}}{2}}}
0.7071
60°
1 / 3 π
66+ 2 / 3 g
3
2
{\displaystyle {\frac {\sqrt {3}}{2}}}
0.8660
1 / 2
0.5
75°
5 / 12 π
83+ 1 / 3 g
6
+
2
4
{\displaystyle {\frac {{\sqrt {6}}+{\sqrt {2}}}{4}}}
0.9659
6
−
2
4
{\displaystyle {\frac {{\sqrt {6}}-{\sqrt {2}}}{4}}}
0.2588
90°
1 / 2 π
100g
1
1
0
0