Basic Trig. Functions
Inverse Trig. Functions
Unit Circle
Large Angle Measures
Mixed Review
100
sin(90) =
0
100
csc(30) =
2
100
What is the point at pi/4 radians?
(sqrt(2)/2, sqrt(2)/2)
100
sin(15pi/4)
-sqrt(2)/2
100
sin(270) =
-1
200
cos(5pi/6)
-sqrt(3)/2
200
sec(4pi/3) =
-2
200
What is the point at 90 degrees?
(0, 1)
200
cos(480) =
-1/2
200
What is the radian measure for 225 degrees?
5pi/4
300
tan(180) =
0
300
cot(135) =
-1
300
Which 4 angles in degrees represent a radian measure of pi/2?
0, 90, 180, 270
300
tan(450) =
undefined
300
What is the degree measure for 4pi/3?
240 degrees
400
sin(-pi/4) =
-sqrt(2)/2
400
sec(210) =
-2/sqrt(3)
400
How do you know if a coordinate value is positive or negative?
Look at the x and y axis. Treat it like a graph and determine where x and y are negative and positive.
400
cos(-690) =
sqrt(3)/2
400
cot(-360) =
undefined
500
tan(300) =
-sqrt(3)
500
cot(-pi/3)
-1/sqrt(3)
500
What is special about all of the coordinate pairs that correspond to a radian measure that is pi/4?
All points are (sqrt(2)/2, sqrt(2), 2). The only thing that changes are the negatives.
500
sin(-43pi/6)
1/2
500
tan(-660) =
sqrt(3)
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