6 Trig Functions
Similarly, we can find six possible ratios from the similar triangle property. Here are the definitions of all six possible ratios:
1) `sinθ=(opposite)/(hypoten use)` or `sinθ = y/r`
2) `cosθ=(adjacent)/(hypoten use)` or `cosθ = x/r`
3) `tanθ=(opposite)/(adjacent)` or `tanθ = y/x`
4) `cscθ=(hypoten use)/(opposite)` or `cscθ = r/y`
5) `secθ=(hypoten use)/(adjacent)` or `secθ = r/x`
6) `cotθ=(adjacent)/(opposite)` or `cotθ = x/y`