Question

Me ajudem a calcular as potências da imagem por favor!

Answer 1

a) $(\frac{4}{5})^{2}=\frac{4^{2}}{5^{2}}=\frac{4.4}{5.5}=\frac{16}{25}$

b) $\frac{4^{2}}{5}=\frac{4.4}{5}=\frac{16}{5}$

c) $(-\frac{3}{10})^{2}=(-\frac{3}{10}).(-\frac{3}{10})=\frac{9}{100}$

d) $(-\frac{9}{8})^{2}=(-\frac{9}{8}).(-\frac{9}{8})=\frac{81}{64}$

e) $(-\frac{1}{2})^{5}=(-\frac{1}{2}).(-\frac{1}{2}).(-\frac{1}{2}).(-\frac{1}{2}).(-\frac{1}{2})=-\frac{1}{32}$

f) $(-\frac{1}{2})^{6}=(-\frac{1}{2})^{5}.(-\frac{1}{2})=(-\frac{1}{32}).(-\frac{1}{2})=\frac{1}{64}$