[tex]( \frac{18}{5 \sqrt{3} } - \frac{12}{4 \sqrt{3 } } - \frac{6}{2 \sqrt{3} } - \frac{8}{2 \sqrt{3} } ) - ( \frac{4}{3 \sqrt{2} } + \frac{3}{2 \sqrt{2} } - \frac{40}{12 \sqrt{2} } [/tex]
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