Unit Circle Basics

What is the value of cosine at 135

• 0
• 1/2
• √2 /2
• -√2 /2

Tags

CCSS.HSF.TF.A.2

cos 90

• 0
• 1
• -1
• undefined

Tags

CCSS.HSF.TF.A.2

cos (π/4)

• √3/2
• √2/2
• 1/2
• 1

Tags

CCSS.HSF.TF.A.2

cos(30^o)

• - ½
• √3/2
• 2√3 /3
• ½

Tags

CCSS.HSF.TF.A.2

How many radians does a circle have?

•   360 degrees
• 2pi radians
• pi radians
• ^{2 radians}

Tags

CCSS.HSF.TF.A.1

Convert π radians to degrees.

• 90⁰
• 180⁰
• 360⁰
• 60⁰

Tags

CCSS.HSF.TF.A.1

Convert 150⁰ to radians

• 5π/6
• 3π/4
• 7π/6
• 2π/3

Tags

CCSS.HSF.TF.A.1

What is 360 degrees in radians? 

• 2π/3
• 5π/4
• 2π
• π

Tags

CCSS.HSF.TF.A.1

Convert 150⁰ to radians

Tags

CCSS.HSF.TF.A.1

• 90⁰

• 45⁰

• 60⁰

• 30⁰

Tags

CCSS.HSF.TF.A.1