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Tombrokaw

  • 3 years ago

81^-3/4. Help, por favor!

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  1. CliffSedge
    • 3 years ago
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    take fourth root, then cube, then invert.

  2. nasryn
    • 3 years ago
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    \[\frac{ 1 }{ \sqrt[4]{81}^{3} }\]

  3. Tombrokaw
    • 3 years ago
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    I got 1/27

  4. Aparna2
    • 3 years ago
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    1/27 is right answer

  5. Tombrokaw
    • 3 years ago
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    Awesome! Thank you.

  6. nasryn
    • 3 years ago
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    yes. the 4th root of 81 is 3. 3*3*3*3 = 81

  7. nasryn
    • 3 years ago
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    then 3^3=27

  8. nasryn
    • 3 years ago
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    so yes, 1/27 is your answer

  9. Tombrokaw
    • 3 years ago
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    Thank you for your help!

  10. nasryn
    • 3 years ago
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    :)

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