Identités trigonométriques Flashcards
1
Q
sin^2(x) + cos^2(x) =
A
1
2
Q
1 =
A
sin^2(x) + cos^2(x)
3
Q
tan^2(x) + 1 =
A
sec^2(x)
4
Q
sec^2(x) =
A
tan^2(x) + 1
5
Q
1 + cotan^2(x) =
A
cosec^2(x)
6
Q
cosec^2(x) =
A
1 + cotan^2(x)
7
Q
sin(2x) =
A
2sin(x)cos(x)
8
Q
2sin(x)cos(x) =
A
sin(2x)
9
Q
cos(2x) =
A
cos^2(x) - sin^2(x)
10
Q
cos^2(x) - sin^2(x) =
A
cos(2x)
11
Q
sin^2(x) =
A
(1 - cos(2x))/2
12
Q
(1 - cos(2x))/2 =
A
sin^2(x)
13
Q
cos^2(x) =
A
(1 + cos(2x))/2
14
Q
(1 + cos(2x))/2 =
A
cos^2(x)
