Simplifying Trig Expressions with Identities

Simplify the trig expression.

• secx
• cotx
• sec²x
• tan²x

Tags

CCSS.HSA.SSE.B.3

CCSS.HSA.SSE.A.2

CCSS.HSG.SRT.C.6

• secθ
• cos²θ
• sin²θ
• sin²θ/cos²θ

Tags

CCSS.HSF.TF.C.8

CCSS.HSF.TF.A.2

• csc x
• sec x
• 1/sec x
• cos x

Tags

CCSS.HSF.TF.C.8

CCSS.HSF.TF.A.2

CCSS.HSF.TF.A.3

CCSS.HSF.TF.A.4

sec²(y) - tan²(y)

• tan(y)

• 1

• -sin(y)

• -1

Tags

CCSS.HSF.TF.C.8

(cot²x) / (cscx+1)

• cscx +1
• cscx−1
• secx−1
• secx+1

Tags

CCSS.HSA.SSE.B.3

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

CCSS.HSF.IF.C.8

Is this a pythagorean identity?
tan²x + 1 = secx

• Yes
• No

Tags

CCSS.HSF.TF.C.8

CCSS.HSG.SRT.C.8

• sin(x) - cos(x)

• -cot(x) - sec(x)

• cot(x) - sec(x)

• -sin(x) - cos(x)

Tags

CCSS.HSF.TF.C.8

CCSS.HSF.TF.A.2

CCSS.HSF.TF.A.3

CCSS.HSF.TF.A.4

• sin ² θ

• cos ² θ

• tan ² θ

• sec ² θ

Tags

CCSS.HSF.TF.C.8

CCSS.HSA.SSE.B.3

CCSS.HSA.SSE.A.2

Tags

CCSS.HSF.TF.C.8

CCSS.HSA.SSE.B.3

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7

Tags

CCSS.HSF.TF.C.8

CCSS.HSA.APR.D.6

CCSS.HSA.APR.D.7