Question

Va rog ajutati-ma numai cazul b,c.​

Answer 1

Răspuns:

    a) $\frac{2}{3}$

    b) $\frac{16}{3}$

    c) $\frac{5}{3}$

Explicație pas cu pas:

    a) $\sqrt{0,(4)}$ = $\sqrt{\frac{4}{9}}$ = $\frac{\sqrt{4}}{\sqrt{9}}$ = $\frac{2}{3}$

    b) $\sqrt{28,(4)}$ = $\sqrt{28\frac{4}{9}}$ = $\sqrt{\frac{256}{9}}$ = $\frac{16}{3}$

    c) $\sqrt{2,(7)}$ = $\sqrt{2\frac{7}{9}}$ = $\sqrt{\frac{25}{9}}$ = $\frac{5}{3}$