[tex]\it \sqrt[\it3]{\it82} =?\\ \\ 64<82<125 \Rightarrow 4^3<82<5^3\\ \\ 4,4^3\approx 85,18\\ \\ 4,3^3\approx79,5\\ \\ Deci,\ 4,3<\sqrt[3]{\it82}<4,4\\ \\ 4,35^3\approx 82,31\\ \\ 4,34^3\approx 81,74\\ \\ 4,345^3\approx82,02\\ \\ Prin\ urmare,\ \ \sqrt[3]{\it82} \approx4,345[/tex]
