ta có :
\(45^{10}\times\frac{5^{10}}{75^{10}}=\left(45\times\frac{5}{75}\right)^{10}=3^{10}\)
ta có :
\(45^{10}\times\frac{5^{10}}{75^{10}}=\left(45\times\frac{5}{75}\right)^{10}=3^{10}\)