( 1/2)^8 : ( 1/2 )^2) và (1/2)^3, ( 1/2)^3

Lời giải:

\({\left( {\frac{1}{2}} \right)^8}:{\left( {\frac{1}{2}} \right)^2} = {\left( {\frac{1}{2}} \right)^{8 - 2}} = {\left( {\frac{1}{2}} \right)^6}\);

\({\left( {\frac{1}{2}} \right)^3}\,\,.\,\,{\left( {\frac{1}{2}} \right)^3} = {\left( {\frac{1}{2}} \right)^{3\, + \,3}} = {\left( {\frac{1}{2}} \right)^6}\).

Vậy \({\left( {\frac{1}{2}} \right)^8}:{\left( {\frac{1}{2}} \right)^2} = {\left( {\frac{1}{2}} \right)^3}\,\,.\,\,{\left( {\frac{1}{2}} \right)^3}\).