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log_(8)((1)/(64))=

log8164= \log _{8} \frac{1}{64}=

Full solution

Q. log8164= \log _{8} \frac{1}{64}=
  1. Rewrite as 838^{-3}: We know that 6464 is 88 cubed, or 838^3. So, we can rewrite 1/641/64 as 838^{-3}.
  2. Apply change of base formula: Now, we apply the change of base formula for logarithms. log883\log_{8} 8^{-3} is simply 3-3, because the base and the argument are the same.
  3. Calculate log base 88: So, log8(164)\log_{8}\left(\frac{1}{64}\right) equals 3-3.

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