trig 30.9.24 Flashcards
1
Q
how do you convert degrees to radians
A
multiply the degree by pie/180
2
Q
how to convert radians to degrees
A
multiply like this : 180/pie * radian(inverted)
3
Q
180 degrees equals
A
pie
4
Q
radius of a unit circle…
A
1
5
Q
circle equation
A
(x – h)2+ (y – k)2 = r2
(wth square root over it)
6
Q
center of unit circle equation
A
x2 + y2 = 1
(with square root over it)
7
Q
sin =
A
opposite/ hypotenuse
8
Q
cos =
A
adjacent/ hypotenuse
9
Q
tan =
A
opposite/ adjacent
10
Q
csc =
A
hypotenuse/opposite
11
Q
sec =
A
hypotenuse/adjacent
12
Q
cot =
A
adjacent/ opposite
13
Q
sin =
A
y/r
14
Q
cos =
A
x/r
15
Q
tan =
A
y/x
