10054 Unit 3 Review (Topics 18-23): Trigonometry

How many degrees is ^π/₃ radians?

• 30°
• 45°
• 60°
• 90°

How many degrees is ^π/₄ radians?

• 30°
• 45°
• 60°
• 90°

How many degrees is ^π/₂ radians?

• 30°
• 45°
• 60°
• 90°

How many degrees is ^π/₆ radians?

• 90°
• 60°
• 45°
• 30°

What is the order of the coordinate pairs for the points on the Unit Circle?

• $\left(\tan\theta,\sin\theta\right)$

• $\left(\cot\theta,\cos\theta\right)$

• $\left(\sin\theta,\cos\theta\right)$

• $\left(\cos\theta,\sin\theta\right)$

Give the exact value of the expression.

 $\sin\left(-\frac{\pi}{4}\right)$  

•  $\frac{\sqrt{2}}{2}$  

•  $\frac{\pi}{4}$  

•  $-\frac{\sqrt{2}}{2}$  

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