Rasionalkannn..14 per akar 7 + akar 3

jawab

14 / (√7 + √3) =

= 14 (√7 - √3) / (7-3)
= 14/4 (√7 - √3)
= 7/2 (√7 - √3)

[tex] \frac{14}{ \sqrt{7} + \sqrt{3} } \\ = \frac{14}{ \sqrt{7} + \sqrt{3} } \times \frac{ \sqrt{7} - \sqrt{3} }{ \sqrt{7} - \sqrt{3} } \\ = \frac{14 \sqrt{7} - 14 \sqrt{3} }{7 - 3} \\ = \frac{14 \sqrt{7} - 14 \sqrt{3} }{4} \\ = \frac{7 \sqrt{7} - 7 \sqrt{3} }{2} [/tex]
SEMOGA MEMBANTU :)