Question

Efectuati:
Radical din 7 plus paranteza rotunda minus 1 supra radic din 2 plus 1 supra radic din 7 inchide paranteza ori radic din 14
Va tog mult sa m ajutati

Answer 1

Radical 7 + (-1/radical 2 + 1/radical 7) × radical 14 = radical 7 + (-Radical 7 + radical 2)/radical 14 × radical 14 = radical 7 + (-Radical 7 + radical 2) = radical 7 - radical 7 + radical 2 = radical 2

Answer 2

Răspuns:

    $\sqrt{2}$

Explicație pas cu pas:

    $\sqrt{7}+(-\frac{1}{\sqrt{2}}+\frac{1}{\sqrt{7}})*\sqrt{14}$

    $\sqrt{7}+(-\frac{\sqrt{2}}{2}+\frac{\sqrt{7}}{7})*\sqrt{14}$

    $\sqrt{7}+(-\frac{\sqrt{2}*\sqrt{14}}{2}+\frac{\sqrt{7}*\sqrt{14}}{7})$

    $\sqrt{7}+(-\frac{\sqrt{28}}{2}+\frac{\sqrt{98}}{7})$

    $\sqrt{7}-\frac{\not2\sqrt{7}}{\not2}+\frac{\not7\sqrt{2}}{\not7}$

    $\sqrt{7}-\sqrt{7}+\sqrt{2}=\sqrt{2}$