Colin Donnelly-
sin(30°)
= 0.5
-
cos(30°)
≈ 0.866
-
sin(45°)
≈ 0.707
-
cos(45°)
≈ 0.707
-
sin(60°)
≈ 0.866
-
cos(60°)
= 0.5
-
sin(90°)
1
-
cos(90°)
0
-
sin(120°)
≈ 0.866
-
cos(120°)
= -0.5
-
sin(135°)
≈ 0.707
-
cos(135°)
≈ -0.707
-
sin(150°)
= 0.5
-
cos(150°)
≈ -0.866
-
sin(180°)
0
-
cos(180°)
-1
-
sin(210°)
= -0.5
-
cos(210°)
≈ -0.866
-
sin(225°)
≈ -0.707
-
cos(225°)
≈ -0.707
-
sin(240°)
≈ -0.866
-
cos(240°)
= -0.5
-
sin(270°)
-1
-
cos(270°)
0
-
sin(300°)
≈ -0.866
-
cos(300°)
= 0.5
-
sin(315°)
≈ -0.707
-
cos(315°)
≈ 0.707
-
sin(330°)
= -0.5
-
cos(330°)
≈ 0.866
-
sin(π/6)
= 0.5
-
cos(π/6)
≈ 0.866
-
sin(π/4)
≈ 0.707
-
cos(π/4)
≈ 0.707
-
sin(π/3)
≈ 0.866
-
cos(π/3)
= 0.5
-
sin(π/2)
1
-
cos(π/2)
0
-
sin(2π/3)
≈ 0.866
-
cos(2π/3)
= -0.5
-
sin(3π/4)
≈ 0.707
-
cos(3π/4)
≈ -0.707
-
sin(5π/6)
= 0.5
-
cos(5π/6)
≈ -0.866
-
sin(π)
0
-
cos(π)
-1
-
sin(7π/6)
= -0.5
-
cos(7π/6)
≈ -0.866
-
sin(5π/4)
≈ -0.707
-
cos(5π/4)
≈ -0.707
-
sin(4π/3)
≈ -0.866
-
cos(4π/3)
= -0.5
-
sin(3π/2)
-1
-
cos(3π/2)
0
-
sin(5π/3)
≈ -0.866
-
cos(5π/3)
= 0.5
-
sin(7π/4)
≈ -0.707
-
cos(7π/4)
≈ 0.707
-
sin(11π/6)
= -0.5
-
cos(11π/6)
≈ 0.866
-
sin(0)
0
-
cos(0)
1
-
arcsin(x) = 0.6
x = ?
≈ 36.9 degrees
-
arccos(x) = 0.8
x = ?
≈ 36.9 degrees
-
arcsin(x) = 0.8
x = ?
≈ 53.1 degrees
-
arccos(x) = 0.6
x = ?
≈ 53.1 degrees
-
arcsin(x) = 0.28
x = ?
≈ 16.3 degrees
-
arccos(x) = 0.96
x = ?
≈ 16.3 degrees
-
arcsin(x) = 0.96
x = ?
≈ 73.7 degrees
-
arccos(x) = 0.28
x = ?
≈ 73.7 degrees
-
List the five simplest Pythagorean triples:
3-4-5
5-12-13
7-24-25
8-15-17
20-21-29
-
For small angles, ...
sinθ = tanθ
