• Matéria: Matemática
  • Autor: jonathasnunes
  • Perguntado 9 anos atrás

x= \frac{1}{4}  \sqrt{48} + \frac{1}{2}  \sqrt{243} - \frac{1}{6}  \sqrt{12} <br />

Respostas

respondido por: Helvio
1
 \dfrac{1}{4} \sqrt{48} +  \dfrac{1}{2} \sqrt{243} -  \dfrac{1}{6} \sqrt{12}

Fatore os valore dentro da raiz

48 | 2
24 | 2
12 | 2
  6 | 2
  3 | 3
  1 | ===2⁴ . 3

243 | 3
  81 | 3
  27 | 3
    9 | 3
    3 | 3
    1 |===3⁵

12 | 2
  6 | 2
  3 | 3
  1 |===2² . 3

===
\dfrac{1}{4} \sqrt{2^4. 3} + \dfrac{1}{2} \sqrt{3^5} - \dfrac{1}{6} \sqrt{2^2. 3}  \\  \\  \\ \dfrac{1}{4}. 4\sqrt{3} + \dfrac{1}{2}. 9\sqrt{3} - \dfrac{1}{6}.2 \sqrt{3}  \\  \\  \\  \dfrac{ 4\sqrt{3}}{4} + \dfrac{ 9\sqrt{3} }{2}- \dfrac{2 \sqrt{3}}{6} \\  \\  \\ \sqrt{3} + \dfrac{ 9\sqrt{3} }{2}- \dfrac{\sqrt{3}}{3} \\  \\  \\ \sqrt{3} + \dfrac{27\sqrt{3}- 2\sqrt{3} }{6} \\  \\  \\  \sqrt{3} + \dfrac{25\sqrt{3}}{6} \\  \\  \\  \dfrac{6 \sqrt{3} +25\sqrt{3}}{6}  \\  \\  \\=\ \textgreater \    \dfrac{31 \sqrt{3} }{6}

Helvio: De nada.
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