Radians and Trigonometry
If Acos θ = A, then θ =
(two answers; find them both)
- 0
- π/3
- π/2
- π
- 3π/2
- 2π
If Acos θ = - A, then θ =
- 0
- π/3
- π/2
- π
- 3π/2
- 2π
If Acos θ = 0, then θ =
(two answers, find them both)
- 0
- π/3
- π/2
- π
- 3π/2
- 2π
If Acos θ = A/2, then θ =
- 0
- π/3
- π/2
- π
- 3π/2
- 2π
If 6cos(2πt) = 6, then 2πt =
(two answers; find them both)
- 0
- π/3
- π/2
- π
- 3π/2
- 2π
If 6cos(2πt) = -6, then 2πt =
- 0
- π/3
- π/2
- π
- 3π/2
- 2π
If 6cos(2πt) = 0, then 2πt =
(multiple answers, find them both)
- 0
- π/3
- π/2
- π
- 3π/2
- 2π
If 6cos(2πt) = 3, then 2πt =
- 0
- π/3
- π/2
- π
- 3π/2
- 2π
If 2Acos (4πt) = 2A, then 4πt =
(two answers, find the both)
- 0
- π/3
- π/2
- π
- 3π/2
- 2π
If 2Acos (4πt) = -2A, then 4πt =
- 0
- π/3
- π/2
- π
- 3π/2
- 2π
If 2Acos (4πt) = 0, then 4πt =
(Two answers, find them both)
- 0
- π/3
- π/2
- π
- 3π/2
- 2π
If 2Acos (4πt) = A, then 4πt =
- 0
- π/3
- π/2
- π
- 3π/2
- 2π