$\lim\:\:_{x\to\:\:0}\:1+x-e^x\sin^2x$
$\left(2x^2y+5\right)\left(2x^2y-5\right)$
$-4x\ge8$
$2x+5>7$
$\lim_{x\to5}\frac{\sqrt{x}-\sqrt{5}}{5-x}$
$99\:-\:\left(-68\right)$
$x-7<12$
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