1/9
sin cos tan
how to find trig function of sin0
y/r
how to find trig function of cos0
x/r
how to find trig function of tan0
y/x
how to find trig function of sec0
r/x
how to find trig function of cot0
x/y
how to find trig function of csc0
r/y
Quadrant I
sinθ, cosθ, tanθ, cscθ, secθ, cotθ > 0 (all positive)
Quadrant II
sinθ, cscθ > 0 (are positive)
Quadrant III
tanθ, cotθ > 0 (positive)
Quadrant IV
cosθ, secθ > 0 (positive)