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Anonymous Anonymous
  • 17-08-2014
  • Mathematics
Answered

How would I work this out in my head, without a calculator??

How would I work this out in my head, without a calculator?? class=

Verified Answer :

konrad509
konrad509 konrad509
  • 17-08-2014

\(243^{\frac{4}{5}}=\sqrt[5]{243^4}=\sqrt[5]{(3^5)^4}=\sqrt[5]{(3^4)^5}=3^4=81\)

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