Solving Trig Equations with Pythagorean Identities

• 2secθ

• cot²θ

• tan²θ

• sec²θ + 1

Which of the following is not a pythagorean identity?

• cot²x + 1 = csc²x

• csc²x + 1 = cot²x

• cot²x - csc²x = -1

• csc²x - cot²x = 1

Please select the correct solution

• csc² x

• cot² x

• sin² x

• sec² x

*

• sin² x

• tan² x

• cot² x

• csc² x

(cos²(φ) - 1)(csc(φ))

• A. sin(φ)

• B. sec(φ)

• C. -sin(φ)

• D. csc(φ)

*

• tan² x

• cos² x

• cot² x

• csc² x

(csc²(θ))(cos²(θ) - 1)

• cos(θ)

• -sec(θ)

• 1

• -1

Drag & Drop to form a Pythagorean Identity ​ ​ (a)   + (b)   = 1

cos²(γ) - cot(γ)tan(γ)

• tan²(γ)

• -sin²(γ)

• cos(γ)

• sin²(γ)

cos²(w) - cos(w)sec(w)

• A. -sin(w)

• B. sin²(w)

• C. -sin²(w)

• D. csc(w)