$\int cos30\:dx$
$\int5x^3cos4xdx$
$\frac{\left(e^{-x}cos^2x\right)}{x^2+x+1}$
$-7\cdot8\cdot9$
$sin\:2x=cos\:2y$
$8+\left(-6\right)+\left(-5\right)+8\left(-3\right)+10$
$1-4x>2-x$
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