Question

the rationalising factor ot 1/2+3√6​

Answer 1

$\frac{1}{2 + 3 \sqrt{6} } \times \frac{2 - 3 \sqrt{6} }{2 - 3 \sqrt{6} } \\ \\ = > \frac{2 - 3 \sqrt{6} }{ {(2)}^{2} - {(3 \sqrt{6}) }^{2} } \\ \\ = > \frac{2 - 3 \sqrt{6} }{4 - 54} = \frac{2 - 3 \sqrt{6} }{ - 50} \\ \\ = > \frac{3 \sqrt{6} - 2 }{50}$

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