Pre-Calculus Chapter 4 Review

sin π/4

• $\frac{\sqrt{2}}{2}$
  

• 1/2

• $\frac{\sqrt{3}}{2}$
  

• 0

sec 3π/2

• 0
• undefined
• 1
• -1

cos 5π/6

• -1/2
• 1/2
• √3/2
• -√3/2

tan 7π/4

• -1
• 1
• √2/2
• undefined

cos 4π/3

• -√3/2
• √3/2
• 1/2
• -1/2

tan (-π)

• undefined
• 0
• 1
• -1

7π/6=?

• 300°
• 30°
• 120°
• 210°

Tangent is...

• a. Opposite/Adjacent

• b. sine/cosine

• c. neither a or b

• d. both a and b

What is the length in radians of the arc of the circle from 0 degrees to 120 degrees?

• π/3
• π/6
• 2π/3
• 3π/4

Tags

CCSS.HSG.C.B.5

What is the equation of the graph?

•  y = 2 cos x
• y = sin x
• y = 2 sin x
• y = sin 2x 

Tags

CCSS.HSF-IF.C.7E