Rationalise (3√5 + √3)/(√5 − √3)

🎥 Video Solution:


📘 Rationalise & Simplify:

\[ \frac{3\sqrt{5} + \sqrt{3}}{\sqrt{5} – \sqrt{3}} \]

✏️ Solution:

\[ = \frac{3\sqrt{5} + \sqrt{3}}{\sqrt{5} – \sqrt{3}} \times \frac{\sqrt{5} + \sqrt{3}}{\sqrt{5} + \sqrt{3}} \]

\[ = \frac{(3\sqrt{5} + \sqrt{3})(\sqrt{5} + \sqrt{3})}{5 – 3} \]

\[ = \frac{15 + 3\sqrt{15} + \sqrt{15} + 3}{2} \]

\[ = \frac{18 + 4\sqrt{15}}{2} \]

\[ = 9 + 2\sqrt{15} \]

✅ Final Answer: \(9 + 2\sqrt{15}\)

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