Trig identities

*

• csc² x
• sec² x
• cot² x
• tan² x

*

• csc² x
• cot² x
• sin² x
• sec² x

*

• csc x
• sec x
• cot x
• tan x

Find sin θ if cot θ = 1/2 and θ is in quad I

• 5/4

• 2√5 / 5

• √5 / 5

• ^{√5 / 2}

True or False, the value of sin and cos can be greater than 1.

• True

• False

Simplify

• -1
• sin θ
• csc θ
• 1

Tags

CCSS.HSF.TF.A.3

CCSS.HSF.TF.C.8

Simplify (Hint: you will need to FOIL first)

• sinθ

• cot²θ

• tan²θ

• cos²θ

Tags

CCSS.HSA.SSE.B.3

CCSS.HSF.TF.C.8

Simplify:  tanxcotx-cos²x

• tanx
• cotx
• sin²x
• cos²x

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSF.TF.C.8

Simplify

• sin²θ
• cosθ
• tanθ
• 1- sin²θ

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

CCSS.HSF.TF.C.8

4) sinx(cotx+tanx)

• cosx
• cscx+1
• cosx-2
• secx

Tags

CCSS.HSG.SRT.C.7