Question

Освободите от иррациональности 7/3√2.​

Answer 1

$\displaystyle\bf\\\dfrac{7}{3\sqrt{2} } =\dfrac{7\cdot\sqrt{2} }{3\sqrt{2} \cdot\sqrt{2} } =\dfrac{7\sqrt{2} }{3\cdot2} =\dfrac{7\sqrt{2} }{6}$