Pythagorean Identities

(csc²(θ))(1 - cos²(θ))

• A. sec(θ)

• B. 1

• C. -1

• D. -sin(θ)

• tan²θ = sec²θ + 1

• tan²θ = sec²θ - 1

• tanθ = secθ - 1

• tan²θ = opp/adj

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• csc² x

• cot² x

• sin² x

• sec² x

Solve the following for cos²θ:
sin²θ + cos²θ = 1

• cos²θ = 1 - sin²θ

• cosθ = 1 + sin²θ

• cosθ = 1 - sinθ

• cos²θ = Adj/hyp

Please select the correct solution

• csc² x

• cot² x

• sin² x

• sec² x

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• sin² x

• tan² x

• cot² x

• csc² x

Which of the following is not a pythagorean identity?

• cot²x + 1 = csc²x

• csc²x + 1 = cot²x

• cot²x - csc²x = -1

• csc²x - cot²x = 1

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• tan² x

• cos² x

• cot² x

• csc² x

Which would you use to verify?

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