Ta có :
(0,36)8=(0,6.0,6)8=(0,62)8=0,62.8=0,616
(0,216)4=(0,6.0,6.0,6)4=(0,63)4=0,63.4=0,612
Ta có:
\(\left(0,36\right)^8=\left(0,6.0,6\right)^8=\left(0,6^2\right)^8=0,6^{16}\)
\(\left(0,216\right)^4=\left(0,6.0,6.0,6\right)^4=\left(0,6^3\right)^4=0,6^{12}\)