Trigonometriska samband M0030M Flashcards
1
Q
(Cos^2)X+(Sin^2)X =
A
1
2
Q
Cos2X =(Cos^2) X-(Sin^2)X =
A
= 2(Cos^2)X-1 = 1-(2sin^2)X
3
Q
(Sin^2)X =
A
= (1-Cos2x)/2
4
Q
(Cos^2)X =
A
=(1+Cos2x)/2
5
Q
Sin2X =
A
= 2sinXCosX
6
Q
(Sin^2)0,5X =
A
= (1-CosX)/2
7
Q
(Cos^2)0,5X =
A
(1+CosX)/2
8
Q
Cos((pi/2)-X) =
A
= Sin x
9
Q
Cos(-X) =
A
= Cos x
10
Q
Cos(pi-X) =
A
= -Cos(X)
11
Q
Sin((pi/2)-X) =
A
= Cos X
12
Q
Sin(pi-X) =
A
= Sin x
13
Q
Sin(-X) =
A
= -Sin(X)
