CAROLINACNMUNIZGO
Respondido

ME RESPONDAMMMMM POR FAVORRRRRR
(2-1/3)-²-21⁰ ​

Resposta :

Resolva dentro do parênteses primeiro.

[tex](2-\frac{1}{3} )^{-2} - 21^{0} =\\\\(\frac{6-1}{3} )^{-2} - 1 =\\\\(\frac{5}{3})^{-2} - 1 =\\\\(\frac{3}{5} )^{2} - 1 =\\\\\frac{9}{25} - 1 =\\\\\frac{9 - 25}{25} = \\\\-\frac{16}{25}[/tex]

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