Resposta:
a)[tex]-1[/tex]
b)[tex]\frac{3}{5}[/tex]
c)[tex]\frac{9}{5}[/tex]
d)8
Explicação passo a passo:
[tex]a)\\(\frac{2}{3})^-^1 -(-\frac{5}{2})\\ \frac{3}{2}-\frac{5}{2} \\\\\frac{-2}{2}\\-1[/tex]
[tex]b)\\(\frac{2}{3})^-^1 -(-\frac{5}{2})\\\frac{3}{2} :\frac{5}{2}\\\frac{3}{2} *\frac{2}{5}\\\\\frac{6}{10}\\\frac{3}{5}[/tex]
[tex]c)\\((\frac{2}{3})^-^1 -(-\frac{5}{2}))^2\\(\frac{3}{2} *\frac{5}{2})^2\\(\frac{6}{10})^2\\\frac{6}{10}*\frac{6}{10}\\\frac{36}{20} :4\\\frac{9}{5}[/tex]
[tex]d)\\((\frac{2}{3})^-^1 -(-\frac{5}{2}))^2\\(\frac{3}{2} +\frac{5}{2})^2\\(\frac{8}{2}) ^2\\\frac{8}{2}*\frac{8}{2}\\\frac{16}{2}\\ 8[/tex]
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