Rajan classes s.s.k.chawl room no 5
dharavi x road Mumbai -400017 contact: 8268545939 success starts here
Trigonometric
formulas of standard angles
|
|
0°
|
30°
|
45°
|
60°
|
90°
|
180°
|
270°
|
360°
|
|
sin
|
0
|
1/2
|
1/√2
|
√3/2
|
1
|
0
|
-1
|
0
|
|
Cos
|
1
|
√3/2
|
1/√2
|
1/2
|
0
|
-1
|
0
|
1
|
|
Tan
|
0
|
1/√3
|
1
|
√3
|
N.D
|
0
|
N.D
|
0
|
|
cot
|
N.D
|
√3
|
1
|
1/√3
|
0
|
N.D
|
0
|
N.D
|
|
cosec
|
N.D
|
2
|
√2
|
2/√3
|
1
|
N.D
|
-1
|
N.D
|
|
Sec
|
1
|
2/√3
|
√2
|
2
|
N.D
|
-1
|
N.D
|
1
|
Trigonometric
ratios of allied angles
|
Trigo-ratios
|
allied
angles
|
- θ
|
π/2-θ
|
π/2+θ
|
π-θ
|
π+θ
|
3π/2-θ
|
3π/2+θ
|
2π-θ
|
2π+θ
|
|
sin
|
-sin θ
|
cos θ
|
cos θ
|
sin θ
|
-sin θ
|
-cos θ
|
-cos θ
|
-sin θ
|
sin θ
|
|
|
Cos
|
Cos θ
|
sin θ
|
-sin θ
|
-cos θ
|
-cos θ
|
-sin θ
|
sin θ
|
Cos θ
|
Cos θ
|
|
|
Tan
|
-tan θ
|
cot θ
|
-cot θ
|
-tan θ
|
tan θ
|
cot θ
|
-cot θ
|
-tan θ
|
tan θ
|
|
|
cot
|
-cot θ
|
tan θ
|
-tan θ
|
-cot θ
|
cot θ
|
tan θ
|
-tan θ
|
-cot θ
|
cot θ
|
|
|
Cosec
|
-cosec θ
|
Sec θ
|
Sec θ
|
cosec θ
|
-cosec θ
|
-Sec θ
|
-Sec θ
|
-cosec θ
|
cosec θ
|
|
|
sec
|
Sec θ
|
cosec
|
-cosec θ
|
-Sec θ
|
-Sec θ
|
-cosec θ
|
cosec θ
|
Sec θ
|
Sec θ
|
|
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