$\int\sec^3\left(2x\right)\tan\left(2x\right)dx$
$\left(24+i-14+5i\right)$
$a^2-b^2+2a^2-a^2-b^2$
$\lim_{x\to infinity}\left(-\frac{1}{2x^2+2}\right)$
$\int_{\frac{1}{2}}^{\frac{3}{4}}\left(\frac{1}{\sqrt{x+2}-2\sqrt{y}}\right)dx$
$\left|+3+4\right|-\left(-1\right)$
$3a+2b+a+4$
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