Trig Review Flashcards
1
Q
rad to degrees conversion
A
x°=x/180 * π
2
Q
degrees to rad conversion
A
x rads= 180/pi * x°
3
Q
(Right triangle) Sin(theta)
A
opp/hyp
4
Q
(Right triangle) Cos(theta)
A
adj/hyp
5
Q
(Right triangle) Tan(theta)
A
Opp/adj
6
Q
(right triangle) Cot(theta)
A
adj/opp
7
Q
(right triangle) sec(theta)
A
hyp/adj
8
Q
(right triangle) csc(theta)
A
hyp/opp
9
Q
(trig identity) sin2x + cos2x=?
A
1
10
Q
(trig identity) 1+tan2x=?
A
sec2x
11
Q
1+cos2x=?
A
csc2x
12
Q
(trig identity) sin(-theta)=?
A
-sin(theta)
13
Q
(trig identity) cos(-theta)=?
A
cos(theta)
14
Q
(trig identity) sin(x + or - y)=?
A
sin(x) cos(y) + or - sin(y) cos(x)
15
Q
(trig identity) cos(x + or - y)=?
A
cos(x) cos(y) + or - sin(x) sin(y)
19
Q
Unit circle
A
