$\sec60^{\circ}$
$\int\frac{1}{x^2\cdot\sqrt{16+9x^2}}dx$
$-17+\sqrt{2.64}$
$\left(m^2+2\right)\left(m^2+3\right)$
$x^4+x^3-19x^2-49x-30$
$\frac{d^2}{dx^2}\left(1-\frac{y^3}{x^2}\right)$
$w^2-12w+8$
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