How do you evaluate ${log}_{3} 81$ $log_3 81$ ?

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Answer 1 · 2015-11-11T16:43:27

The answer is $4$ $4$ .

${log}_{3} 81$ $log_(3)81$ is the same thing as writing $3^{x} = 81$ $3^x = 81$ , where you have to solve for $x$ $x$ . $3$ $3$ is the base number.

$3 \cdot 3 \cdot 3 \cdot 3$ $3 * 3 * 3 * 3$ is $81$ $81$ , proving $3^{4} = 81$ $3^4 = 81$ . So, $4$ $4$ is the answer.

How do you evaluate log381log_3 81 ?