bilangan yg senilai dgn 2 /3 + √2

[tex] \frac{2}{3 + \sqrt{2} } = \frac{2}{3 + \sqrt{2} } \times \frac{ 3 - \sqrt{2} }{3 - \sqrt{2} } \\ = \frac{2(3 - \sqrt{2} )}{9 - 2} \\ = \frac{2}{7} (3 - \sqrt{2} ) [/tex]