12 per 3 akar 2=...?

[tex] \frac{12}{3 \sqrt{2} } = \frac{4}{ \sqrt{2} } X \frac{ \sqrt{2} }{ \sqrt{2} } = \frac{4 \sqrt{2} }{2} = 2 \sqrt{2} [/tex]

Merasionalkan.

[tex]\displaystyle \frac{12}{3\sqrt{2}}\\ =\frac{12}{3\sqrt{2}}~\frac{3\sqrt{2}}{3\sqrt{2}}\\ =\frac{36\sqrt{2}}{18}=2\sqrt{2}[/tex]