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ihatealgebrasomuch

  • one year ago

is the sin120 degrees -1/2?

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  1. Jonask
    • one year ago
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    \[\sin 120=\sin (180-60)=\sin 60=\sqrt {3}\]

  2. Jonask
    • one year ago
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    /2

  3. dpaInc
    • one year ago
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    just remember that on the unit circle, sin is your y-coordinate cos is your x-coordinate.

  4. ZeHanz
    • one year ago
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    Still on the top-half of the unit circle, so sin is positive there...

  5. Jonask
    • one year ago
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    is this a complete question

  6. Jonask
    • one year ago
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    what is it looking for

  7. dpaInc
    • one year ago
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    it's basically a yes/no question...

  8. ihatealgebrasomuch
    • one year ago
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    it just said find each trigonometric ratio and gave me sin120.

  9. ihatealgebrasomuch
    • one year ago
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    oh i see, so since sin is the y axis, it would be sqrrt3/2

  10. dpaInc
    • one year ago
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    correct... sin is the y-coordinate, not the y axis...

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