Question

x= (-1/3)³ + [ 3-¹ - (-3)-¹] -²

Answer 1

Resposta:

$x=\frac{239}{108}$

Explicação passo-a-passo:

$x=(-\frac{1}{3}) ^{3} +[3^{-1} -(-3)^{-1} ]^{-2}$

$x=-\frac{1}{27} +[\frac{1}{3} +\frac{1}{3}]^{-2}$

$x=-\frac{1}{27} +[\frac{2}{3} ]^{-2}$

$x=-\frac{1}{27} +[\frac{1}{(\frac{2}{3})^{2}} ]$

$x=-\frac{1}{27} +\frac{1}{\frac{4}{9} }$

$x=-\frac{1}{27} +\frac{9}{4}$

$x=\frac{-4+243}{108}$

$x=\frac{239}{108}$