Question

Calcule o valor da expressão 72 + √81 : 32​

Answer 1

$72+\frac{\sqrt{8}\cdot \:1}{32}=72+\frac{\sqrt{2}}{16}\quad \left(\mathrm{Decimal:\quad }\:72.08838\dots \right)\\\\\\\\\\\\\\\\72+\frac{\sqrt{8}\cdot \:1}{32}\\\\\\\\\\\\\\\frac{\sqrt{8}\cdot \:1}{32}=\frac{\sqrt{2}}{2^4}\\\\\\\\\\72+\frac{\sqrt{2}}{2^4}\\\\\\\\72+\frac{\sqrt{2}}{16}$