Degrees to Radians
What's That Angle?
Key Trig Values
Definitions
Even and Odd Functions
100
45 degrees
What is pi/4
100
pi
Draw a 180 degree angle.
100
sin (0)=?
sin (0) = 0
100
Opposite of an angle divided by the hypotenuse
What is the sine of an angle? SOH
100
cos(x) (even, odd, or neither?)
What is an even function? Even functions are f(-x) = f(x)
200
5 pi / 6
150 degrees
200
pi / 4
Draw a 45 degree angle.
200
cos (2pi/3)=?
cos (2pi/3) = 1/2
200
cosine of an angle
What is the adjacent leg divided by the hypotenuse of an angle?
200
sin (x) (even, odd, or neither?)
What is an odd function? Remember that an odd function is -f(a) = f(-a)
300
90 degrees + 3 pi / 2 (In radians and degrees)
What is 2pi (360 degrees)
300
-pi / 3
Draw a negative 60 degree angle.
300
tan (pi/4)=?
tan (pi/4) = 1
300
The period of the sine and cosine functions. (Number)
What is 2 pi.
300
cos (x) + sin (x) (even, odd, or neither?)
What is neither an odd nor even function.
400
3 pi / 7
What is approx 77 degrees
400
-pi/2 - pi/4
Draw a -135 degree angle.
400
sin (pi/3) + cos (5pi/4)=?
sin (pi/3) + cos (5pi/4) = {sqrt(3)-sqrt(2)}/2
400
The angle made by wrapping the radius around the unit circle once.
What is a radian or 57.3 degrees.
400
cos (3x) (even, odd, or neither?)
What is an even function? Even though 3 is an odd number, it has no bearing on whether cos (3x) is an odd function.
500
2 pi / 5
What is 72 degrees
500
-(270 degrees - pi/6 + 5pi/3)
Draw a -540 degree angle.
500
sin(3pi/2) - cos(pi)=?
sin(3pi/2) - cos(pi) = 0
500
The unit circle.
What is a circle centered at the origin with a radius of 1.
500
-3 tan (x) (even, odd, or neither?)
What is and odd function? Remember that tan (x) = sin (x) / cos (x).
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