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anonymous

  • 5 years ago

find the exact value of sin (-120)

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  1. anonymous
    • 5 years ago
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    sin(-a) = -sin(a) sin(x) = sin(180-x) Gogogogog

  2. anonymous
    • 5 years ago
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    I don't understand that? is the answer -sin 60

  3. anonymous
    • 5 years ago
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    I don't understand that? is the answer -sin 60

  4. anonymous
    • 5 years ago
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    yes, sorry

  5. anonymous
    • 5 years ago
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    knowak stop player hating ¬_¬

  6. anonymous
    • 5 years ago
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    but, of course, you need to know the value of sin 60... \[-\sin 60 = -\frac{\sqrt{3}}{2} \] I think

  7. anonymous
    • 5 years ago
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    dont you have to add 360 to make the number positive first?

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spraguer (Moderator)
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