Rationalize \(\frac{2\sqrt{3} + 3 \sqrt{2}}{3\sqrt{2} - 2 \sqrt{3}}\)

Mathematics

JAMB 1991

A. 5 - 2\(\sqrt{6}\)
B. 5 + 2\(\sqrt{6}\)
C. 5\(\sqrt{6}\)
D. 5

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Correct Answer: Option B

Explanation

\(\frac{2\sqrt{3} + 3 \sqrt{2}}{3\sqrt{2} - 2 \sqrt{3}}\)

= \(\frac{2\sqrt{3} + 3 \sqrt{2}}{3\sqrt{2} - 2 \sqrt{3}}\) x \(\frac{3\sqrt{2} + 2 \sqrt{3}}{3\sqrt{2} - 2 \sqrt{3}}\)

\(\frac{4(3) + 9(2) + 2(6) \sqrt{6}}{9(2) - 4(3)}\)

\(\frac{12 + 18 + 12\sqrt{6}}{1`8 - 12}\)

= \(\frac{30 + 12\sqrt{6}}{6}\)

= 5 + 2\(\sqrt{6}\)

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