Cách làm cho bạn:
Ta có:
a) $2^{5}=32$
b) $(−5)^{3}=-125$;
c) $0,4^{3}= 0,064$;
d) $(−0,4)^{3}=-0,064$;
e) $(\frac{1}{2})^{5}=\frac{1^{5}}{2^{5}}=\frac{1}{32}$;
g) $(\frac{−1}{3})^{4}=\frac{1}{81} $;
h) $21,5^{0}=1$;
i) $(3\frac{1}{2})^{2}= (\frac{7}{2})^{2} = \frac{7}{2}.\frac{7}{2} = \frac{49}{4}$.
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