#
Solve this :

Draw the sign scheme then find the solution

$a)\frac{{\left(x-2\right)}^{2}\left(x-3\right)}{x-1}0\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}b)\frac{{\left(x-2\right)}^{2}\left(x-3\right)}{x-1}\ge 0$

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