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(31A) Logarithms in base a

Evaluate.

$2^5$

Evaluate.

$\log _{7}1=$

Evaluate. Give your answers as fractions.

$5^0$

Evaluate.

$\log _{5}\frac{1}{625}=$

Evaluate. Give your answers as fractions.

$9^{\frac{1}{2}}$

Evaluate. Give your answers as fractions.

$\log_{343}7$