$47.02374-38.93200$
$cot^210$
$\sqrt{100\cdot\sqrt[3]{8}}$
$81\:a^4-\:100\:b^4$
$v^2+uv+4+u+10u+6$
$sen\left(x\right)\frac{dy}{dx}+2ycos\left(x\right)=\:4xsen\left(x\right)$
$\lim_{x\to-1}\sqrt{4x^2-5x}$
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