Precal Dual Credit Test Flashcards
1
Q
Ratio for Sine
A
O/H or Y/R
2
Q
Ratio for Cosine
A
A/H or X/R
3
Q
Ratio for Tangent
A
O/A or Y/X
4
Q
Ratio for Cosecant
A
1/Sin, H/O, or R/Y
5
Q
Ratio for Secant
A
H/A, R/X, 1/cos
6
Q
Ratio for Cotangent
A
1/tan, x/y, a/o, cos/sin
7
Q
Converting Degrees to Radians
A
Multiply by pi/180
8
Q
Converting Radians to Degrees
A
Multiply by 180/pi
9
Q
Period
A
How long it takes for the graph to repeat itself. Frequency.
Period=2pi/B ; B is located in front of the x.
10
Q
Amplitude
A
The height of the graph from the midline! Highest-Lowest/2 or abs(A)
11
Q
Arc Length
A
s=radiusxtheta
Where theta must be in radians
12
Q
Linear Speed
A
arc length/time
13
Q
Revolution
A
One full rotation around a circle
revolutionx2pi=theta
14
Q
Angular Speed
A
theta/time
Where theta must be in radians
15
Q
Pythagorean Identity
A
sin^2x+cos^x=1
