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greeneyes<3

Evaluate the expression in radian and degrees; without using a calculator. Please explain or show work! thank you! :]

  • one year ago
  • one year ago

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  1. greeneyes<3
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    \[\tan^{-1} (\sqrt{3}/3)\]

    • one year ago
  2. LivyLou
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    If you know the unit circle values all you have to do is remember which values give you \[\tan \sqrt{3}/3\] If you only know sine and cosine values then sine would have to be 1/2 and cosine would be the sqrt of 3 over 2.

    • one year ago
  3. LivyLou
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    You will have two answers for each since tangent is positive in both quadrant I and III

    • one year ago
  4. greeneyes<3
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    i'm confused. How do you know the values?

    • one year ago
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spraguer (Moderator)
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