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anonymous

  • one year ago

sin(-150°) = -sin30° true or false?

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  1. anonymous
    • one year ago
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    Correct

  2. anonymous
    • one year ago
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    Flase

  3. anonymous
    • one year ago
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    False*

  4. anonymous
    • one year ago
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    The identity \( \sin(-\theta) = -\sin(\theta) \)

  5. anonymous
    • one year ago
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    is that how you determine?

  6. anonymous
    • one year ago
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    Dude plug it into a calculator

  7. anonymous
    • one year ago
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    its not an identity its simply asking if they equal each other and even if it was an identity it still would be false

  8. Vocaloid
    • one year ago
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    aren't they both equal to -1/2?

  9. anonymous
    • one year ago
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    No

  10. anonymous
    • one year ago
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    Here http://www.sosmath.com/trig/Trig5/trig5/trig5.html The answer is True

  11. anonymous
    • one year ago
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    And it is an identity

  12. anonymous
    • one year ago
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    \[\sin (-150)=.714 -\sin (30)=.9\]

  13. anonymous
    • one year ago
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    Its False

  14. Vocaloid
    • one year ago
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    Nixy is correct.

  15. anonymous
    • one year ago
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    it is in radian

  16. anonymous
    • one year ago
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    I mean to degrees

  17. Vocaloid
    • one year ago
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    The question is asking for degrees...

  18. anonymous
    • one year ago
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    We are working with degrees

  19. anonymous
    • one year ago
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    I am correct. It is an even odd identity and it is True.

  20. Vocaloid
    • one year ago
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    |dw:1434557221966:dw| confirm

  21. anonymous
    • one year ago
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    Thank you everyone

  22. anonymous
    • one year ago
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    YW

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