Finding the Value of sin(θ) given cos(θ)

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Questions and Answers

Jika cos(θ) = 3/5, berapakah nilai dari sin(θ)?

  • 1/5
  • 1/3
  • 4/5
  • 2/3 (correct)

Jika cos(θ) = 3/5, nilai dari sin(θ) adalah?

  • 12/15
  • 6/7
  • 3/2
  • 2/5 (correct)

Berapakah nilai sin(θ) jika cos(θ) = 3/5?

  • -3/5 (correct)
  • 2/3
  • 1/5
  • 4/5

Jika cos(θ) = 3/5, sin(θ) sama dengan?

<p>-2/3 (A)</p> Signup and view all the answers

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Study Notes

Menghitung Nilai sin(θ)

  • Jika cos(θ) = 3/5, maka kita dapat menghitung nilai sin(θ) menggunakan identitas Pythagoras: sin²(θ) + cos²(θ) = 1.
  • Substitusi nilai cos(θ) = 3/5 ke dalam identitas di atas, maka: sin²(θ) + (3/5)² = 1.
  • Dengan demikian, kita dapat menghitung nilai sin(θ) yaitu: sin(θ) = ±√(1 - (3/5)²).

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