- Trigonometric ratios of angles 0o, 30o, 45o, 60o,90o
000 300 450 600 900Sin (^0212)
1
2
(^31)
Cos (^1232)
1
2
(^10)
Tan (^03)
1
1 3 Not definedCosec Not defined (^223)
2
1
Sec (^13)
2
2 2 Not definedCot Not defined (^313)
1
0
The trigonometric ratios of the specific angles mentioned can be taught through
spatial presentation of this table in Braille format.Trigonometric identities
- sinθ = cos^1 ecθ
- cosθ = sec^1 θ
- tanθ = cot^1 θ
- cosecθ = sin^1 θ
- secθ = cos^1 θ
- cotθ = tan^1 θ
- sinθ. cosecθ =1