$cos\theta\:-cos\theta\:sin^2\theta\:$
$\frac{dy}{dx}\left(y=x^{\frac{3}{x}}\right)$
$\int x^4-\frac{1}{x^2}+1dx$
$\log_b\left(x+3\right)-\log_b\left(x+4\right)$
$x^3+3x^2-6x-8$
$3n\:+\:3\:$
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