S
strawberryyellow


Rút gọn biểu thức:
$A=\dfrac{1}{\sqrt[3]{1}+\sqrt[3]{2}+\sqrt[3]{4}}+\dfrac{1}{\sqrt[3]{4}+\sqrt[3]{6}+\sqrt[3]{9}}+...+\dfrac{1}{\sqrt[3]{4048144}+\sqrt[3]{4050156}+\sqrt[3]{4052169}}$
$A=\dfrac{1}{\sqrt[3]{1}+\sqrt[3]{2}+\sqrt[3]{4}}+\dfrac{1}{\sqrt[3]{4}+\sqrt[3]{6}+\sqrt[3]{9}}+...+\dfrac{1}{\sqrt[3]{4048144}+\sqrt[3]{4050156}+\sqrt[3]{4052169}}$