Trig Formulas Flashcards
1
Q
sin^2(theta)+cos^2(theta)
A
1
2
Q
tan^2(theta)+1
A
sec^2(theta)
3
Q
1+cot^2(theta)
A
csc^2(theta)
4
Q
1-cos^2(theta)
A
sin^2(theta)
5
Q
1-sin^2(theta)
A
cos^2(theta)
6
Q
sec^2(theta)-tan^2(theta)
A
1
7
Q
sec^2(theta)-1
A
tan^2(theta)
8
Q
csc^2(theta)-cot^2(theta)
A
1
9
Q
csc^2(theta)-1
A
cot^2(theta)
10
Q
tan(theta+pin)
cot(theta+pin)
A
tan(theta)
cot(theta)
11
Q
sin(2theta)
A
2sin(theta)cos(theta)
12
Q
cos(2theta)
A
cos^2(theta)-sin^2(theta)
2cos^2(theta)-1
1-2sin^2(theta)
13
Q
tan(2theta)
A
2tan(theta)/1-tan^2(theta)
14
Q
sin(theta/2)
A
plus/minus root((1-cos(theta))/2)
15
Q
cos(theta/2)
A
plus/minus root ((1+cos(theta)/2)
