The problem asks to express the fraction $\frac{3\sqrt{2}-\sqrt{3}}{2\sqrt{3}-\sqrt{2}}$ in the form $\frac{\sqrt{m}}{\sqrt{n}}$, where $m$ and $n$ are whole numbers.

AlgebraRationalizationSimplificationRadicalsFractions
2025/3/19

1. Problem Description

The problem asks to express the fraction 323232\frac{3\sqrt{2}-\sqrt{3}}{2\sqrt{3}-\sqrt{2}} in the form mn\frac{\sqrt{m}}{\sqrt{n}}, where mm and nn are whole numbers.

2. Solution Steps

First, we rationalize the denominator of the given expression by multiplying both the numerator and denominator by the conjugate of the denominator. The conjugate of 2322\sqrt{3}-\sqrt{2} is 23+22\sqrt{3}+\sqrt{2}.
323232=32323223+223+2\frac{3\sqrt{2}-\sqrt{3}}{2\sqrt{3}-\sqrt{2}} = \frac{3\sqrt{2}-\sqrt{3}}{2\sqrt{3}-\sqrt{2}} \cdot \frac{2\sqrt{3}+\sqrt{2}}{2\sqrt{3}+\sqrt{2}}
=(323)(23+2)(232)(23+2)= \frac{(3\sqrt{2}-\sqrt{3})(2\sqrt{3}+\sqrt{2})}{(2\sqrt{3}-\sqrt{2})(2\sqrt{3}+\sqrt{2})}
=32(23)+32(2)3(23)3(2)(23)2(2)2= \frac{3\sqrt{2}(2\sqrt{3}) + 3\sqrt{2}(\sqrt{2}) - \sqrt{3}(2\sqrt{3}) - \sqrt{3}(\sqrt{2})}{(2\sqrt{3})^2 - (\sqrt{2})^2}
=66+6664(3)2= \frac{6\sqrt{6} + 6 - 6 - \sqrt{6}}{4(3) - 2}
=56122= \frac{5\sqrt{6}}{12-2}
=5610= \frac{5\sqrt{6}}{10}
=62= \frac{\sqrt{6}}{2}
Now we want to express 62\frac{\sqrt{6}}{2} in the form mn\frac{\sqrt{m}}{\sqrt{n}}. We can write 22 as 4\sqrt{4}, so
62=64\frac{\sqrt{6}}{2} = \frac{\sqrt{6}}{\sqrt{4}}
Now, we can multiply the numerator and the denominator by 55\sqrt{\frac{5}{5}}.
62=64=64×5555=655455\frac{\sqrt{6}}{2}=\frac{\sqrt{6}}{\sqrt{4}}=\frac{\sqrt{6}}{\sqrt{4}} \times \frac{\sqrt{\frac{5}{5}}}{\sqrt{\frac{5}{5}}} = \frac{\sqrt{6 \cdot \frac{5}{5}}}{\sqrt{4 \cdot \frac{5}{5}}}
That's not working. Instead, we can multiply the top and bottom by kk\sqrt{\frac{k}{k}}.
Alternatively, we want to find an equivalent form of the given options.
(a) 610\frac{\sqrt{6}}{\sqrt{10}}
(b) 150100=256100=5610=62\frac{\sqrt{150}}{\sqrt{100}} = \frac{\sqrt{25 \cdot 6}}{\sqrt{100}} = \frac{5\sqrt{6}}{10} = \frac{\sqrt{6}}{2}
(c) 2610\frac{2\sqrt{6}}{\sqrt{10}}
(d) 5610\frac{5\sqrt{6}}{\sqrt{10}}

3. Final Answer

(b) 150100\frac{\sqrt{150}}{\sqrt{100}}

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