$\frac{dy}{dx}=\frac{2x}{x^2+1}+1$
$\left(1+cot\left(x\right)\right)\left(1-cot\left(x\right)\right)$
$10sin2t+7sin\left(2t+\pi\right)$
$\left(3x^3-1\right)\left(3x^3+2\right)$
$2x^3+x^2+5x-32x^3-3x^2+4$
$-\frac{sin\left(x\right)}{sec\left(x\right)}$
$\sqrt[3]{\frac{3a^2y^6z^7}{2y^2}}$
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