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babydoll332

  • 3 years ago

Find the exact value of sin-1(-0.5).

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  1. babydoll332
    • 3 years ago
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    pi/3 correct?

  2. anonymous
    • 3 years ago
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    no because \[\sin(\frac{\pi}{3})=\frac{1}{2}\] not \(-\frac{1}{2}\) but you have the right idea

  3. anonymous
    • 3 years ago
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    go the other way on the unit circle to \(-\frac{\pi}{3}\)

  4. babydoll332
    • 3 years ago
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    ok so -pi/3

  5. babydoll332
    • 3 years ago
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    it makes sense

  6. anonymous
    • 3 years ago
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    yup don't forget your answer has to be between \(-\frac{\pi}{2}\) and \(\frac{\pi}{2}\) which is why you are not allowed to say \(\frac{2\pi}{3}\) for example

  7. babydoll332
    • 3 years ago
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    got :))

  8. anonymous
    • 3 years ago
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    good!

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