$\lim_{\theta\:\to\frac{\pi}{2}}\left(1+cos3\left(\theta\:\right)\right)^{sec\left(\theta\:\right)}$
$\left(x+y+2\right)-\left(3x-2y+5\right)$
$2\cdot512$
$\int7x\cos\left(3-x\right)dx$
$\log\left(x+6\right)-\log14=\log19$
$\left(6x\right)+\left(12\right)^2$
$\frac{x-7x+8}{x+5}$
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