Trigonometric ratios
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Contents
[hide]Name
Figure | Sides |
---|---|
Let the right triangle OHA O= side adjacent to angle θ |
Name of Ratio | Abbreviation | Explicit Formula | Formula | Memory Aid |
---|---|---|---|---|
sine of θ |
sinθ |
sinθ=side opposite to θhypotenuse |
sinθ=OH |
SOH |
cosine of θ |
cosθ |
cosθ=side adjacent to θhypotenuse |
cosθ=AH |
CAH |
tangent of θ |
tanθ |
tanθ=side opposite to θside adjacent to θ |
tanθ=OA |
TOA |
cotangent of θ |
cotθ |
cotθ=side adjacent to θside opposite to θ |
cotθ=AO |
|
secant of θ |
secθ |
secθ=hypotenuseside adjacent to θ |
secθ=HA |
|
cosecant of θ |
cscθ |
cscθ=hypotenuseside opposite to θ |
cscθ=HO |
Usage
- Write here usage for the table
See Also
- List here internal links