Question

допоможіть будь-ласка ​

Answer 1

$\bf \: f(x) = {x}^{ - \frac{1}{3} } ; \\ \\ \bf \: 1). \: \: \: \: f(8) = {(8)}^{ - \frac{1}{3} } = { \bigg( \frac{1}{8} \bigg)}^{ \frac{1}{3} } = \frac{ \sqrt[3]{1} }{ \sqrt[3]{8} } = \frac{1}{2} \huge = 0.5; \\ \bf 2). \: \: \: f \bigg( \frac{1}{27} \bigg) = { \bigg( \frac{1}{27} \bigg)}^{ - \frac{1}{3} } = \sqrt[3]{27} \huge = 3.$