tolong pakai caranya

[tex] {3}^{ - 2 \frac{3}{4} } = {3}^{ - \frac{11}{4} } = \frac{1}{ {3}^{ \frac{11}{4} } } = \frac{1}{ \sqrt[4]{ {3}^{11} } } = \frac{1}{9 \sqrt[4]{27} } [/tex]