ini apa yaaaa jawabannya kira kira

[tex] = \frac{2}{ \sqrt{2} - 1} \times \frac{ \sqrt{2} + 1 }{ \sqrt{2 + 1 } } \\ = \frac{2 (\sqrt{2} + 1)}{2 - 1} \\ = 2 (\sqrt{2} + 1)[/tex]
jadi jawabannya C