Answer
$$e^2=7.389..$$
Work Step by Step
$9^{1/ln3} =(3^2)^{ln(e)/ln(3)} = 3^{2log_3e} = (3^{log_3e})^2 = e^2$
($9 = 3^2; ln(e) = 1$; $ln(a)/ln(b) = log_ba; (a^m)^n =a^{mn} = (a^n)^m; a^{log_ab} = b$)
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