Multiple Choice Question (MCQ)

Find the exact value for sin(570°)

  1. ×

    \dfrac{1}{2}

  2. -\dfrac{1}{2}

  3. ×

    \dfrac{\sqrt{3} }{2}

  4. ×

    -\dfrac{\sqrt{3} }{2}

Collected in the board: Trigonometric Values of Special Angles

Steven Zheng posted 22 hours ago

Answer

  1. \sin(570°) = \sin(360°+210°)= \sin 210° = \sin(180°+30°) = -\dfrac{1}{2}

    Therefore,

    B is the correct choice

Steven Zheng posted 22 hours ago

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