Question

me ajudem pf


k) (−9)0=


l) (0,8)−4=​

Answer 1

Resposta:

k)

$( - 9) {}^{0} = \green{1}$

l)

$(0.8) {}^{ - 4} = \\ \\ {( \dfrac{8}{10} )}^{ - 4} \\ \\ ( \dfrac{10 \div 2}{8 \div 2} ) {}^{4} \\ \\( \dfrac{5}{4} ) {}^{4} \\ \\ \green{\dfrac{625}{256} }$

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