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How do you write ${log}_{b} 81 = 4$ $log_b 81=4$ in exponential form?

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Mar 5, 2016

${log}_{a} b = c$ $log_a b = c$ is equal to $a^{c} = b$ $a^c = b$

Thus, ${log}_{b} 81 = 4$ $log_b 81 = 4$ is equal to $b^{4} = 81$ $b^4 = 81$

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