$\lim_{x\to\infty}\left(2x+1-\sqrt{4x^2+1}\right)$
$\int\frac{10x^2}{\sqrt{100-x^2}}dx$
$-19\cdot\left(-5\right)$
$x^2-14x+0$
$x^2>=3x-2$
$-77-96$
$5sin^2x+4cscxtanx+5cos^2x$
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