Trigonometric Ratios
Trignometric functions of Class 11
Trigonometric Ratios
Ratios from 0° to 90°
|
0° |
7.5° |
15° |
18° |
22½° |
30° |
36° |
45° |
60° |
67.5° |
75° |
90° |
|
|
Sin |
0 |
|
|
|
|
1/2 |
|
1/√2 |
√3/2 |
|
|
1 |
|
Cos |
1 |
|
|
|
|
√3/2 |
|
1/√2 |
1/2 |
|
|
0 |
|
Tan |
0 |
|
|
|
√2 - 1 |
1/√3 |
|
1 |
√3 |
√2 + 1 |
2 + √3 |
∞ |
|
Cot |
∞ |
|
|
|
√2 + 1 |
√3 |
|
1 |
1/√3 |
√2 - 1 |
2 - √3 |
0 |
|
Sec |
1 |
|
|
|
|
2/√3 |
√5 - 1 |
√2 |
2 |
|
√6 + √2 |
∞ |
|
Cosec |
∞ |
|
|
|
|
2 |
|
√2 |
2/√3 |
|
√6 - √2 |
1 |
