$\int\frac{x}{3x^2-7x+4}dx$
$\left(x^2\cdot sen^2x\right)$
$\int-4x\cdot\cos\left(4x\right)dx$
$2x\:+1\ge x+2\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:$
$\left(x^3-3\right)\left(x^3-a\right)\left(nx^3-cx^3\right)\left(d-x\right)$
$dx+\left(y^4+x^2y^4\right)dy=0$
$5\:+\:2\:-\:9\:-\:1\:+\:11$
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