Trig Equations

Solve: 4sinθ + 1 = 3

State all solutions in the interval [0, 2π)

• π/ 6, 7π/6

• π/6, 5π/ 6

• 5π/6, 7π/6

• 7π/6, 11π/6

Solve: 2cscθ + 2 = 0

State all solutions in the interval [0, 2π)

• π/2, 3π/2

• π/2

• 3π /2

• π

• π /3,  2π/3

• 2π /3,  4π/3

• π /6,  5π/6

• 5π /6,  7π/6

Solve: 2cosx - 4 = 0

State all solutions in the interval [0, 2π)

• No solution

• π/3, 5π/3

• π/6, 11π/6

• 2π/3, 4π/3

Solve: 4sin²x = 3

State all solutions in the interval [0, 2π)

• π/6, 11π/6

• π/3, 2π/3

• π/6, 5π/6, 7π/6, 11π/6

• π/3, 2π/3, 4π/3, 5π/3