Solving Simple Trig. Equations Refresher Quiz

Solve equation for  $0\le\theta<2\pi$  .
 $1=5-8\cos\theta$  

•  $\theta=\frac{\pi}{6},\frac{\pi}{3},\frac{11\pi}{6}$  

•  $\theta=\frac{\pi}{6},\frac{11\pi}{6}$  

•  $\theta=\frac{\pi}{6}$  

•  $\theta=\frac{\pi}{3},\frac{5\pi}{3}$  

Tags

CCSS.HSF.TF.B.7

 $5\cos\theta\ +2=0$  
Solve on the interval [0, 360) Round to the nearest tenth of a degree.  Two answers must be selected.

•  $66.4\degree$  

•  $113.6\degree$  

•  $246.4\degree$  

•  $293.6\degree$  

 $10\cos\theta=9$  

Solve on the interval [0,360) Round to the nearest tenth of a degree.  Two answers must be selected.

•  $25.8\degree$  

•  $154.2\degree$  

•  $205.8\degree$  

•  $334.2\degree$  

Solve $5\sin\theta\ +1=0$  on the interval [0,360) Round your answer to the nearest tenth.  Two answers must be selected.

•  $11.5\degree$  

•  $168.5\degree$  

•  $191.5\degree$  

•  $348.5\degree$  

•  $-11.5\degree$  

Solve for  $\theta$  between 0 and 2 $\pi$ . 

• π/6

• 5π/6

• 7π/6; 11π/6

• π/6; 5π/6