Anonym
Anonym
23-10-2014
Mathematics
Answered
how do you do radical 128 with an index of negative 3
Answer :
Аноним
Аноним
25-10-2014
[tex]128=2^7\\\\128^{-3}=\left(2^7\right)^{-3}=2^{7\cdot(-3)}=2^{-21}=\frac{1}{2^{21}}[/tex]
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