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$\alpha \ne \pi $
${x}_{1,2}={\displaystyle \frac{-b\pm \sqrt{{b}^{2}-4ac}}{2a}}$
$\mathrm{abs}(a+b)\le \epsilon +123.45$
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Please take note that WIMS pages are interactively generated; they are not ordinary HTML files. They must be used interactively ONLINE. It is useless for you to gather them through a robot program.