Trig Identities

tanθ = 

• 1/cosθ

• 1/sinθ

• cosθ/sinθ

• sinθ/cosθ

Tags

CCSS.HSF.TF.A.3

CCSS.HSF.TF.C.8

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

cotθ =

• 1/cosθ

• 1/cscθ

• 1/secθ

• 1/tanθ

Tags

CCSS.HSF.TF.C.8

cotθ =

• cosθ/sinθ

• sinθ/cosθ

• tanθ

• 1/cosθ

Tags

CCSS.HSF.TF.A.3

CCSS.HSF.TF.C.8

CCSS.HSG.SRT.C.6

cscθ=

• 1/cosθ
• 1/sinθ
• 1/tanθ
• 1/secθ

Tags

CCSS.HSF.TF.A.2

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.7

CCSS.HSG.SRT.C.8

secθ=

• 1/cosθ
• 1/sinθ
• 1/tanθ
• 1/cscθ

Tags

CCSS.HSF.TF.C.8

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.7

CCSS.HSG.SRT.C.8

Solve the following for cos²θ:
sin²θ + cos²θ = 1

• cos²θ = 1 - sin²θ
• cosθ = 1 + sin²θ
• cosθ = 1 - sinθ
• cos²θ = Adj/hyp

Tags

CCSS.HSF.TF.C.8

Solve the following for tan²θ:
1 + tan²θ = sec²θ 

• tan²θ = sec²θ + 1
• tan²θ = sec²θ - 1
• tanθ = secθ - 1
• tan²θ = opp/adj

Tags

CCSS.HSA.REI.B.4

CCSS.HSF.TF.C.8

Rewrite tan(x) in terms of sin(x) and cos(x).

• tan(x) = cos(x)/sin(x)
• tan(x) = 1/cot(x)
• tan(x) = sin(x)/cos(x)
• tan(x) = opp/adj

Tags

CCSS.HSF.TF.C.8

CCSS.HSG.SRT.C.6

Please select the correct solution

• csc² x
• cot² x
• sin² x
• sec² x

Tags

CCSS.HSF.TF.C.8

Please select the correct solution cos ² x + sin ² x=  

• 1
• csc ² x + sec ² x
• sin ² x
• 1 - sin ² x

Tags

CCSS.HSF.TF.C.8