Question

calcule as potências
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Answer 1

Resposta:

$a)25^{1} =25$

$b)150^{0} =1$

$c)(\frac{7}{9} )^{-2} =(\frac{9}{7} )^{2} =\frac{81}{49}$

$d)4^{2} =4.4=16$

$e)25^{3} =25.25.25=125$

$f)5^{-4} =\frac{1}{5^{4} } =\frac{1}{625} =0,0016$

$h)(\frac{1}{2} )^{2} =\frac{1^{2} }{2^{2} } =\frac{1}{4}$