$\int_{\frac{-\pi}{2}}^{\frac{\pi}{2}}\left(\sin\left(x\right)\right)dx$
$\int e^{2x+6}dx$
$\int\frac{3+7.\cos^2x}{1+cos\:2x}dx$
$\left(-x^2-2x+3\right)-\left(x^3+4x+6\right)$
$\frac{\left(-7\right)^n}{n\sqrt{n}}x^n$
$\frac{2x^2+4x^2+2x}{6x^3-6x}$
$-5x^3y+2x^2+3x-2x^2+8x^3+y$
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