Defining Circular Functions Flashcards
1
Q
X coordinate of p(€)
A
X=cos(€)
2
Q
Y coordinate or p(€)
A
Y=sin(€)
3
Q
Point P(€)
A
Any point on the outer rim of the unit circle which has a radius of 1 unit
4
Q
Coordinates of p(€)
A
(Cos€, sin€)
5
Q
Cos(k2pi+€)
A
Cos€
6
Q
Sin(k2pi+€)
A
Sin€
7
Q
When is tan undefined
A
When cos(€) =0
Vertical line
8
Q
Domain of tan
A
R{€: cos(€) = 0}
+_Pi/2 and +_3pi/2 etc
9
Q
Tan(kPi+£)
A
Tan£
10
Q
Right side of unit circle
A
0
2pi
11
Q
Top side of unit circle
A
Pi/2
12
Q
Left side of unit circle
A
Pi
13
Q
Bottom side of unit circle
A
3pi/2
14
Q
First quad angles
A
30 degrees = Pi/6
45 degrees = Pi/4
60 degrees = Pi/3
15
Q
Tan(€)
A
Sin(€)/cos(€)
Rise/run
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