Question

Tính giá trị của :
\(A=\dfrac{20^{10}.5^{10}}{100^{10}}\)
\(B=\dfrac{\left(0,8\right)^1}{\left(0,4\right)^4}\)

Answer 1

\(A=\dfrac{20^{10}.5^{10}}{100^{10}}=\dfrac{\left(20.5\right)^{10}}{100^{10}}=\dfrac{100^{10}}{100^{10}}=1\)

\(B=\dfrac{\left(0,4.2\right)^1}{\left(0,4\right)^4}=\dfrac{2}{0,4^3}=\dfrac{125}{4}\)

Answer 2

\(a=\dfrac{20^{10}.5^{10}}{100^{10}}=\dfrac{\left(20.5\right)^{10}}{100^{10}}=\dfrac{100^{10}}{100^{10}}=1\)

\(b=\dfrac{\left(0,8\right)^1}{\left(0,4\right)^4}=\dfrac{0,8}{0,0256}=31,25\)