Double Angle Formula Flashcards
1
Q
Using double angles:
2sinθcosθ = ?
A
= sin(2θ)
2
Q
Using double angles:
sin(2θ) = ?
A
= 2sinθcosθ
3
Q
Using double angles:
cos(2θ) = ?
A
= cos2θ- sin2θ
= 2cos2θ-1
= 1- sin2θ
4
Q
Using double angles:
1-2sin2θ = ?
A
=cos(2θ)
5
Q
Using double angles:
2cos2θ-1 = ?
A
= cos(2θ)
6
Q
Using double angles:
cos2θ-sin2θ = ?
A
= cos(2θ)
7
Q
Using double angles:
A
= tan(2θ)
8
Q
Using double angles:
tan(2θ) = ?
A