Trig Identities

What type of special triangle is this?

• 45°-45°-90°
• 30°-60°-90°
• Isosceles
• Obtuse

Tags

CCSS.4.G.A.2

Convert 100⁰ to radians

• 5π/9
• π/2
• 5π/8
• 5π/6

Tags

CCSS.HSF.TF.A.1

• -1
• 0
• undefined
• √3

Tags

CCSS.HSF.TF.A.2

cotθ =

• cosθ/sinθ

• sinθ/cosθ

• tanθ

• 1/cosθ

Tags

CCSS.HSF.TF.A.2

• 3π/4
• π/4
• 5π/4
• -3π/4

Tags

CCSS.HSF.TF.B.7

• -π/3
• 4π/3
• -2π/3
• 2π/3

Tags

CCSS.HSF.TF.B.7

What is tan[arccos(-1)]?

• undefined
• 0
• ½
• 1

Tags

CCSS.HSF.TF.B.7

Evaluate the function:  tan[sin^-1(-1/2)]

• √3
• √3/3
• -√3
• -√3/3

Tags

CCSS.HSF.TF.B.7

cos^-1[tan(-π/4)] = 

• 0
• π
• π/4
• 3π/4

Tags

CCSS.HSF.TF.B.7

What is the amplitude of y = 3 cos 2x?

• 3
• 2
• 90
  90⁰
• 350⁰

Tags

CCSS.HSF-IF.C.7E