Rationalise (1 + √2)/(3 − 2√2)

🎥 Video Solution:


📘 Rationalise & Simplify:

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

✏️ Solution:

\[ = \frac{1 + \sqrt{2}}{3 – 2\sqrt{2}} \times \frac{3 + 2\sqrt{2}}{3 + 2\sqrt{2}} \]

\[ = \frac{(1 + \sqrt{2})(3 + 2\sqrt{2})}{3^2 – (2\sqrt{2})^2} \]

\[ = \frac{3 + 2\sqrt{2} + 3\sqrt{2} + 4}{9 – 8} \]

\[ = \frac{7 + 5\sqrt{2}}{1} \]

\[ = 7 + 5\sqrt{2} \]

✅ Final Answer: \(7 + 5\sqrt{2}\)

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