Degrees/Radians
Convert to radians: 50 degrees
5pi/18
sin(3pi/2)
-1
Find the reference angle for 230 degrees
50 degrees
for the point (3, 4) find the values of all six trig functions
sinx = 4/5. tanx = 4/3. cscx = 5/4
cosx = 3/5. cotx = 3/4. secx = 5/3
Convert to degrees: pi/8
22.5 degrees
cos(11pi/6)
sqrt3/2
Find the reference angle for 428 degrees
68 degrees
For the point (-5, -12) fin d the values of all six trig functions
sinx = -12/13. tanx = 12/5. cscx = -13/12
cosx = -5/13. cotx = 5/12. secx = -13/5
Convert to radians: 1 degree
pi/180 radians
tan(pi/2)
undefined
Find an angle coterminal with pi/3
-5pi/3 or 7pi/3
x = inverseTan1. Find the values of the six trig functions.
tanx = 1 cotx = 1 sinx = sqrt2/2
cosx = sqrt2/2 cscx = sqrt2 secx = sqrt2
Convert to degrees: pi/20
9 degrees
sec(pi/3)
2
Find the reference angle for 13pi/6 radians
pi/6 radians
Find the values of the six trig functions for the angle 3pi/2.
sin = -1 csc = -1 tanx is undefined
cosx = 0 secx is undefined cotx = 0
Convert to degrees: 2 radians
360/pi or 114.6 degrees
tan(11pi/4)
-1
Find the reference angle for 3618 degrees
18 degrees
If cosx = -4/5 and x lies in quadrant II, find the values of the other five functions.
cosx = -4/5 secx = -5/4 tanx = -3/4
sinx = 3/5 cscx = 5/3 cotx = -4/3