Question

Viết kết quả dưới dạng luỹ thừa:

Cơ số \(\dfrac{3}{10};\left(0,09\right)^3;\left(\dfrac{3}{10}\right)^8;\left(0,027\right)^2\)

Answer 1

\(\left(0,09\right)^3=\left(\dfrac{9}{100}\right)^3=\left[\left(\dfrac{3}{10}\right)^2\right]^3=\left(\dfrac{3}{10}\right)^6\\ \left(\dfrac{3}{10}\right)^8=\left(\dfrac{3}{10}\right)^8\\ \left(0,027\right)^2=\left(\dfrac{27}{1000}\right)^2=\left[\left(\dfrac{3}{10}\right)^3\right]^2=\left(\dfrac{3}{10}\right)^6\)