Dubbla Vinkeln Flashcards
1
Q
sin2x=
A
2⋅sinx⋅cosx
2
Q
cos2x= (tre alternativ)
A
cos^2(x)−sin^2(x) eller 2cos^2(x)−1 eller 1−2sin^2(x)
3
Q
tan2x
A
2tanx/(1−tan^(2)x)
sin2x=
2⋅sinx⋅cosx
cos2x= (tre alternativ)
cos^2(x)−sin^2(x) eller 2cos^2(x)−1 eller 1−2sin^2(x)
tan2x
2tanx/(1−tan^(2)x)