Question

Calcule as potências

Answer 1

a) $3^4=3.3.3.3=81$

b) $(-3)^4=3^4=3.3.3.3=81$

c) $(-3)^{-4}=3^{-4}=\frac{1}{3^4} =\frac{1}{81}$

d) $3^{-4}=\frac{1}{3^4} =\frac{1}{81}$

e) $(-4)^3=-4^3=-(4.4.4)=-64$

f) $(-4)^{-3}=-4^{-3}=-\frac{1}{4^3}=-\frac{1}{64}$

g) $4^{-3}=\frac{1}{4^3}=\frac{1}{64}$

h) $(-3)^{-3}=-3^{-3}=-\frac{1}{3^3}=-\frac{1}{27}$

i) $-3^{-4}=-\frac{1}{3^4}=-\frac{1}{81}$