Conversions
Convert 200 degrees to radians
(10pi)/9 radians
sin 150
1/2
sin 4π/3
-√3/2
What is the reference angle of 30 degrees?
30 degrees
What two quadrants is tangent positive?
One and Three
Convert 50 degrees to radians
(5pi)/18 radians
cos 270
0
cos 5π/6
-√3/2
What is the rule for finding a reference angle in the third quadrant? (In radians)
theta - pi
What quadrant is cosine positive and sine is negative?
4
Convert
pi/12
radians to degrees
15°
tan 210
sqrt3/3
tan 11π/6
-sqrt3/3
What is the reference angle for
(7pi)/4
pi/4
What quadrant is cotangent negative and cosecant is positive?
2
Convert 16 radians to degrees
916.73°
or
2880/pi
tan 480
-√3
csc(18/6pi)
undefined
What is the reference angle for
(17pi)/6
pi/6
What quadrant is
(10pi)/3
located
3
Convert 19π/6 radians to degrees
*Answer must be from 0-360 degrees
210°
sec 420
cot ((-5pi)/3)
sqrt3/3
What is the reference angle of -480 degrees?
60 degrees
12/5