Identitates Trigonometricas
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Questions and Answers

Quale identitate trigonometric es correcte?

  • sin 20 + cos 20 = 0
  • sin 20 - cos 20 = 1
  • sin 20 + cos 20 = 2
  • sin 20 + cos 20 = 1 (correct)

    • Que es la relation correcte inter cos 20 e sin 20?

  • cos 20 = sin 20 + 1
  • cos 20 = 1 - sin 20 (correct)
  • cos 20 = sin 20 + sin 20
  • cos 20 = sin 20 - 1

    • Quale es correcte pro cosec 20?

  • cosec 20 = 1 + cot 20 (correct)
  • cosec 20 = cot 20 - 1
  • cosec 20 = 1 - tan 20
  • cosec 20 = 1 - cot 20

    • Qual es la relation correcte inter sec 20 e tan 20?

    <p>sec 20 - tan 20 = 1</p> Signup and view all the answers

    Que exprime tan 20?

    <p>tan 20 = ± sec 20 - 1</p> Signup and view all the answers

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