Trigonometric Identities

Simplify:
sinθcotθ

• sinθ
• tanθ
• cosθ
• secθ

Simplify.

• sinθ
• cot²θ
• tan²θ
• cos²θ

Is this a pythagorean identity?
tan²x + 1 = secx

• Yes
• No

cotθ=

• cosθ/sinθ
• sinθ/cosθ
• tanθ
• 1/cosθ

• -1
• sin θ
• csc θ
• 1

sin²θ+cos²θ=

• csc²θ
• sec²θ
• 1
• csc²θ - 1

Simplify:  tanxcotx-cos²x

• tanx
• cotx
• sin²x
• cos²x

cot(γ)tan(γ) + cot²(γ)

• -cot(γ)

• csc²(γ)

• sec(γ)

• -csc²(γ)

sin²(x) - cos(x)sec(x)

• sec²(x)

• cos²(x)

• -cos²(x)

• -sec²(x)

sin(w)csc(w) - cos²(w)

• csc²(w)

• sin²(w)

• -csc²(w)

• -sin²(w)