$-2\ln\left(\cos\left(y\right)\right)$
$\left(y^2-3\right)^3$
$3x+2y+12x-4y$
$12x^2-4$
$x-15-5x$
$6\:\frac{3}{2}$
$\int_0^1e^{-2x}dx$
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