$-a^2+3a-2$
$7y\cdot7y\cdot7y$
$0.1\left(0.008\right)$
$x^2<6x+9$
$\frac{1}{cos\:a}=\frac{\cos a}{1-sin^2a}$
$\int\frac{2x^3+x^2+1}{x^3-x}dx$
$\int\:\frac{s}{\left(s^2+1\right)\left(s^2+5\right)}ds$
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