Question

como calcular a função exponencial inversa dessas questões?
$f(x) = log_{10}x$
$f(x) = log_{3.2}x$
$f(x) = 3 {}^{x}$

Answer 1

Coloque x onde tem y e vice-versa. Por fim, isole y.

* f(x) = y


$y = log_{10}(x) \\\\ x = log_{10}(y) \\\\ y = 10^x \\\\ f(x) = 10^x$


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$y = log_{3.2}(x) \\\\ x = log_{3.2}(y) \\\\ y = 3.2^x \\\\ f(x) = 3.2^x$


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$y = 3^x \\\\ x = 3^y \\\\ y = log_3(x) \\\\ f(x) = log_3(x)$