jika x = 4, maka √x + 1 /√x per √x - 1 /√x

[tex] = \frac{ \sqrt{x} + \frac{1}{ \sqrt{x} } }{ \sqrt{x} - \frac{1}{ \sqrt{x} } } \\ = \frac{ \sqrt{4} + \frac{1}{ \sqrt{4} } }{ \sqrt{4} - \frac{1}{ \sqrt{4} } } \\ = \frac{2 + \frac{1}{2} }{2 - \frac{1}{2} } \\ = \frac{ \frac{5}{2} }{ \frac{3}{2} } \\ = \frac{5}{2} \times \frac{2}{3} \\ = \frac{5}{3} [/tex]

Jawaban B ✔