Memorize the Unit Circle
Cos 3π/4
- 2 √ 2
Cos 5π/4
- 2 √ 2
Sin 5π/4
- 2 √ 2
Sin 7π/4
- 2 √ 2
Cos π
-1
Sin 3π/2
-1
Cos 2π/3
-1/2
Cos 4π/3
-1/2
Sin 11π/6
-1/2
Sin 7π/6
-1/2
Cos 5π/6
-3√2
Cos 7π/6
-3√2
Sin 4π/3
-3√2
Sin 5π/3
-3√2
0 degrees in radians is
0
Cos 3π/2
0
Cos π/2
0
Sin 0
0
Sin π
0
Cos 0
1
Sin π/2
1
Cos 5π/3
1/2
Sin 5π/6
1/2
Sin π/6
1/2
What is the cos π/3
1/2
What is the sin 5π/6
1/2
330 degrees in radians is
11π/6
120 degrees in radians is
2π/3
270 degrees in radians is
3π/2
135 degrees in radians is
3π/4
240 degrees in radians is
4π/3
300 degrees in radians is
5π/3
225 degrees in radians is
5π/4
150 degrees in radians is
5π/6
315 degrees in radians is
7π/4
210 degrees in radians is
7π/6
180 degrees in radians is
π
90 degrees in radians is
π/2
60 degrees in radians is?
π/3
45 degrees in radians is
π/4
30 degrees in radians is?
π/6
Cos 7π/4
√2/2
Cos π/4
√2/2
Sin 3π/4
√2/2
What is the sin π/4
√2/2
Cos 11π/6
√3/2
Cos π/6
√3/2
Sin 2π/3
√3/2
Sin π/3
√3/2
What is the sin π/3
√3/2
