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Anonymous Anonymous
  • 23-10-2014
  • Mathematics
Answered

how do you do radical 128 with an index of negative 3

Verified Answer :

Anonymous Anonymous
  • 25-10-2014

\(128=2^7\\\\128^{-3}=\left(2^7\right)^{-3}=2^{7\cdot(-3)}=2^{-21}=\frac{1}{2^{21}}\)

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