$\frac{x^2+1}{x}\ge1$
$\frac { 1 } { 95 } - 4 n + 6$
$3c^3+4c^2$
$-8-\left(-3+5-2+1\right)-4-\left(-3+2\right)$
$4sin\:x+4=2$
$x+6>2\left(x+1\right)-3\left(x-3\right)$
$x^2+2x^3+4x^4$
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