Question

ayudaa en serio ayudaaa:(
$\frac{1}{4} \sqrt{80} - \frac{1}{6} \sqrt{63 } - \frac{1}{9} \sqrt{180}$
Porfavor es urgente​

Answer 1

Respuesta:

-0.577

 

Explicación paso a paso:

$\frac{1}{4}\sqrt{80}-\frac{1}{6}\sqrt{63}-\frac{1}{9}\sqrt{180}\\\\\frac{1}{4}\sqrt{16\times5}-\frac{1}{6}\sqrt{9\times7}-\frac{1}{9}\sqrt{36\times5}\\\\\frac{1}{4}\sqrt{4^2\times5}-\frac{1}{6}\sqrt{3^2\times7}-\frac{1}{9}\sqrt{6^2\times5}\\\\\frac{4}{4}\sqrt{5}-\frac{3}{6}\sqrt{7}-\frac{6}{9}\sqrt{5}\\\\\sqrt{5}-\frac{1}{2}\sqrt{7}-\frac{2}{3}\sqrt{5}\\\\\sqrt{5}(1-\frac{2}{3})-\frac{1}{2}\sqrt{7}\\\\\sqrt{5}(\frac{1}{3})-\frac{1}{2}\sqrt{7}\\\\\boxed{\frac{1}{3}\sqrt{5}-\frac{1}{2}\sqrt{7}=-0.577}$