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(31A) Logarithms in base a

Evaluate.

$3^3$

Evaluate.

$\log _{7}1=$

Evaluate. Give your answers as fractions.

$8^0$

Evaluate.

$\log _{2}\frac{1}{4}=$

Evaluate. Give your answers as fractions.

$49^{-\frac{1}{2}}$

Evaluate. Give your answers as fractions.

$\log_{8}2$