sin = x/r = -12/13
cos = y/r = -5/13
tan = y/x = 5/12
...
For the angle shown is a point given on its terminal arm. [picture shows -12, -5 in quadrant three of the unit circle].
Calculate the values of the three primary trigonmetric ratios, accurate to four decimal places.
Dont understand thissss
2 answers
rats. I mixed up sin and cos.