Question

please answer fast, don't write I don't know​

Answer 1

${3}^{ (\frac{ - 3}{4} )}$

Step-by-step explanation:

$= \sqrt[4]{(\frac{ {3}^{2} }{243})} \\ \\ = \sqrt[4]{(\frac{ {3}^{2} }{ {3}^{5} })} \\ \\ = \sqrt[4]{( {3}^{(2 - 5)}) } \\ \\ = {3}^{( - 3 \times \frac{1}{4})} \\ \\ = {3}^{ (\frac{ - 3}{4} )}$