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Which of the following is the Pythagorean identity?

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Question: Which of the following is the Pythagorean identity?

Options:

  1. sin²θ + cos²θ = 1
  2. tanθ = sinθ/cosθ
  3. secθ = 1/cosθ
  4. cscθ = 1/sinθ

Correct Answer: sin²θ + cos²θ = 1

Solution: 

The Pythagorean identity is sin²θ + cos²θ = 1.

Which of the following is the Pythagorean identity?

Practice Questions

Q1
Which of the following is the Pythagorean identity?
  1. sin²θ + cos²θ = 1
  2. tanθ = sinθ/cosθ
  3. secθ = 1/cosθ
  4. cscθ = 1/sinθ

Questions & Step-by-Step Solutions

Which of the following is the Pythagorean identity?
No concepts available.
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