Unit 1A Review

Convert 150⁰ to radians

• 5π/6
• 3π/4
• 7π/6
• 2π/3

What is 7π/4 radians in degrees?

• 300
• 135
• 315
• 45

cos (π/4)

• √3/2
• √2/2
• 1/2
• 1

sin(11π/6)

• -1/2
• 1/2
• √3/2
• -√3/2

• undefined

tanθ is positive in

• the 1st and 2nd quadrants

• the 1st and 3rd quadrants

• the 1st and 4th quadrants

• the 2nd and 3rd quadrants

If an angle is in standard position and goes through the point (-3, 6), what is the value of tan?

• Undefined

What is the reference angle?

• 112

• 68

• 158

• 248