Trigonometric Identities

sin ⁡(-θ)=

• sin ⁡(-θ)

• -sin ⁡(θ)

• sin ⁡(θ)

• cos (-θ)

sec x =

• $\frac{1}{\sin\ x}$

• $\frac{2}{\tan x}$

• $\frac{1}{\cos x}$

• $\cot\ x$

 $\cot\ x\ =$  

•  $\tan\ x$  

•  $\frac{1}{\tan x}$  

•  $\frac{1}{\sin x}$  

•  $\cot x+\cos x$  

sin²θ=

• 1 - cos²θ
• 1 - sin²θ
• sec²θ - 1
• csc²θ - 1

Tags

CCSS.HSF.TF.C.8

• csc²θ
• csc θ sec θ
• cot θ tan θ
• 1/sinθ

Tags

CCSS.HSF.TF.C.8

CCSS.HSG.SRT.C.8

Please select the correct solution

• csc² x
• cot² x
• sin² x
• sec² x

Tags

CCSS.HSF.TF.C.8

Please select the correct solution

• csc x
• sec x
• cot x
• tan x

Tags

CCSS.HSF.TF.C.8

Simplify

• sin²θ
• cosθ
• tanθ
• 1- sin²θ

Tags

CCSS.HSA.SSE.B.3

CCSS.HSF.TF.C.8

Is this a pythagorean identity?
tan²x + 1 = secx

• Yes
• No

Tags

CCSS.HSF.TF.C.8

Simplify this to a basic trigonometry function:
tan(x)csc(x) 

• tanx
• secx
• cotx
• cscx

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3