1. \(\color[rgb]{0.35,0.35,0.35}\frac{1}{\sqrt[3]{1}+\!\sqrt[3]{2}+sqrt[3]{4}}+\frac{1}{\sqrt[3]{4}+\!\sqrt[3]{6}+\!\sqrt[3]{9}}+\frac{1}{\sqrt[3]{9}+\!\sqrt[3]{12}+\!\sqrt[3]{16}}\)
2. \(\color[rgb]{.0, .184, .242}a^2+b^2=ab=4\)
1. The expression is equal to \(\sqrt[3]{12} - \sqrt[3]{2}\)
+90 
