Trig Identities

Simplify

• sin²θ
• cosθ
• tanθ
• 1- sin²θ

Tags

CCSS.HSF.TF.C.8

CCSS.HSA.SSE.B.3

Simplify.

• sinθ

• cot²θ

• tan²θ

• cos²θ

Is this a pythagorean identity?
tan²x + 1 = secx

• Yes
• No

Tags

CCSS.HSF.TF.C.8

Simplify

csc ² x - cot ² x

• sec ² x - 1

• 1

• sec ² x

• csc ² x - 1

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

Tags

CCSS.HSF.TF.C.8

CCSS.HSG.SRT.C.8

Simplify
(sec x)(cot x)(sin x)

• sin x
• - sin x
• 1
• -1

Tags

CCSS.HSF.TF.A.3