$x^4-2x^2-48$
$tanx-sin2x=0$
$\int\left(\frac{\left(2\cdot x^3+x^6-5\right)}{2\cdot x^3}\right)dx$
$-6x+12=30$
$\frac{dy}{dx}=\sqrt{y}\cos\left(x\right)$
$\int_0^{0.5}\sec\left(x\right)dx$
$\frac{-2x}{x^2-49}+\frac{10}{x-7}=\frac{1}{x+7}$
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