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(31A) Logarithms in base a

Evaluate.

$3^4$

Evaluate.

$\log1000=$

Evaluate. Give your answers as fractions.

$8^{-2}$

Evaluate.

$\log _{6}\frac{1}{6}=$

Evaluate. Give your answers as fractions.

$81^{\frac{1}{4}}$

Evaluate. Give your answers as fractions.

$\log_{16}\frac{1}{4}$