Trigonometric Equations

• θ = π / 6,  7π / 6

• θ = π / 6,  5π / 6

• θ = 5π / 6,  7π / 6

• θ = 7π / 6,  11π / 6

Solve for 0≤x≤2π

tanx = 1 #10

• π/2, π

• π/4, 3π/4

• π/4, 5π/4

• 3π/4, 7π/4

Solve for 0≤x≤2π

2sin²x - 5sinx + 2 = 0 #8

• π/6, 5π/6

• 7π/6, 11π/6

• π/3, 2π/3

• 4π/3, 5π/3

Solve
cos²θ = ½ 
on θ∈[0, 2π)

• θ = π /4, 7π /4
• θ = π /4, 3π /4
• θ = 3π /4, 5π /4
• θ = π /4, 3π /4, 5π /4, 7π /4

Solve on the Interval [0,2π)
tan(x)+1=2

• 0 and π  
• 3π/4 and 7π/4
• π/4 and 5π/4
• 3π/4 and 5π/4

TRUE or FALSE:
There is NO SOLUTION to sinθ = -1.

• TRUE
• FALSE

2 sinθ+3=2

• π/6,2π/3
• 7π/6 
• 7π/6, 11π/6

Solve for 0≤x≤2π

2cos²x + cosx = 0

• π/2, 3π/2

• 0, π,2π

• 2π/3, 4π/3

• π/3, 5π/3