Conversions
Convert 120 degrees to radians
(2pi)/3 radians
sin 150
1/2
sin 4π/3
-√3/2
The number of radians in a complete rotation is approximately
2pi
What two quadrants is tangent positive?
Convert 60 degrees to radians
(pi)/3 radians
cos 270
0
cos 5π/6
-√3/2
What are 2 possible measures for theta in degrees if
sin theta=-sqrt3/2
240 degrees and 300 degrees
What quadrant is cosine positive and sine is negative?
4
Convert
pi/6
radians to degrees
30°
tan 210
sqrt3/3
tan 11π/6
-sqrt3/3
The measure of theta in radians if the coordinates are
(sqrt3/2, -1/2)
(11pi)/6
What is cosecant the reciprocal of?
sine
Convert 270 degrees into radians
(3pi)/2
cos(135)
-sqrt2/2
tan(pi)
0
if sin(x)=4/5 and x lies in the 2nd quadrant, find cos(x)
-3/5
Convert
(4pi)/3
radians to degrees
240
tan(90)
tan((5pi)/3)
-sqrt3
if cot(x)= 6 and x lies in the third quadrant, find csc(x)
-sqrt(37)