Simplify Surds Expression

🎥 Video Solution:


📘 Simplify:

\[ \frac{2}{\sqrt{5}+\sqrt{3}} + \frac{1}{\sqrt{3}+\sqrt{2}} + \frac{3}{\sqrt{5}+\sqrt{2}} \]

✏️ Solution (Rationalisation Flow):

\[ = \frac{2(\sqrt{5}-\sqrt{3})}{(\sqrt{5}+\sqrt{3})(\sqrt{5}-\sqrt{3})} + \frac{\sqrt{3}-\sqrt{2}}{(\sqrt{3}+\sqrt{2})(\sqrt{3}-\sqrt{2})} + \frac{3(\sqrt{5}-\sqrt{2})}{(\sqrt{5}+\sqrt{2})(\sqrt{5}-\sqrt{2})} \]

\[ = \frac{2(\sqrt{5}-\sqrt{3})}{5-3} + \frac{\sqrt{3}-\sqrt{2}}{3-2} + \frac{3(\sqrt{5}-\sqrt{2})}{5-2} \]

\[ = (\sqrt{5}-\sqrt{3}) + (\sqrt{3}-\sqrt{2}) + (\sqrt{5}-\sqrt{2}) \]

\[ = 2\sqrt{5} – 2\sqrt{2} \]

✅ Final Answer: \(2(\sqrt{5} – \sqrt{2})\)

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