Trigonometriska funktioner Flashcards
1
Q
cos(π/2-x)
A
sin(x)
2
Q
sin(π/2-x)
A
cos(x)
3
Q
cos^2(x)+sin^2(X)
A
1
4
Q
sin(x+y)
A
sin(x)cos(y)+cos(x)sin(y)
5
Q
sin2x
A
2sin(x)cos(x)
6
Q
cos(x+y)
A
cos(x)cos(y)-sin(x)sin(y)
7
Q
cos(2x)
A
cos^2(x)-sin^2(y)
8
Q
asin(x)+bcos(x)
A
c=(a^2+b^2)^0.5 , tan(v)=b/a , csin(x+v)
9
Q
sin(x)
A
sin(π-x)
10
Q
cos(x)
A
-cos(x)
