8.3 Review

 $Solve\ \sin x=\frac{1}{2}\ for\ 0\le x\le360\degree$  

• 30, 330
  

• 30, 150
  

• 60, 120
  

• 60, 300
  

 $Solve\sin x=\frac{\sqrt{3}}{2}\ ​for\ 0≤x≤360°$  

• 30, 150
  

• 60, 300
  

• 30, 330
  

• 60, 120
  

 $Solve\cos⁡x=-\frac{1}{2}\ for\ 0≤x≤360°$  

• 120, 240
  

• 120, 60
  

• 60, 300
  

• 240, 300
  

 $Solve\sin⁡x=1\ for\ 0≤x≤360°$  

• 90

• 270

• 0

• 180

 $Solve\cos⁡x=-1\ for\ 0≤x≤360°$  

• 270

• 0

• 90

• 180

 $Solve\ 2\sin x-1=0\ for\ 0≤x≤360°$  

• 30, 150
  

• 60, 120
  

• 45, 225
  

• 90, 270
  

 $Solve\sqrt{2}\cos⁡x-1=0\ for\ 0≤x≤360°$  

• 45, 225
  

• 45, 135
  

• 135, 225
  

• 45, 315
  

 $Solve\ 2\cos⁡x=\sqrt{3}\ for\ 0≤x≤360°$  

• 30, 330
  

• 60, 300
  

• 150, 210
  

• 120, 240
  

Solve on the domain [0,2π)
cos x + 1 = 0

• 0
• No solution
• π
• 3π/2

Solve for 0≤x≤2π

2sin²x - 5sinx + 2 = 0

• π/6, 5π/6

• 7π/6, 11π/6

• π/3, 2π/3

• 4π/3, 5π/3