Deck 1 Flashcards
(9 cards)
1
Q
sin(θ/2)
A
√[(1 - cosθ) / 2]
2
Q
cos(θ/2)
A
√[(1 + cosθ) / 2]
3
Q
tan(θ/2)
A
√[(1 - cosθ) / (1 + cosθ)]
4
Q
sin(2θ)
A
2sinθcosθ
5
Q
cos(2θ)
A
cos²θ - sin²θ
2cos²θ - 1
1 - 2sin²θ
6
Q
tan(2θ)
A
(2tanθ) / (1 - tan²θ)
7
Q
sin(3θ)
A
3sinθ - 4sin³θ
8
Q
cos(3θ)
A
4cos³θ - 3cosθ
9
Q
tan(3θ)
A
(3tanθ - tan³θ) / (1 - 3tan²θ)
