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$(2x^2 - 2)e^x$ $\sin(x)\cos(x)$ $\frac{\arctan(x)}{2x^2}$ $\arccos(x)$ $2x$ $\frac{x^2+2}{2x-16}$ $\log(2x)$ $10x^3$ $\sin^2(x)$ $\ln\left(\frac{x+1}{x-2}\right)$ $x^{e}$ $e^x \sin(x)$ $\tan(x)$ $x^2 + y^2 = 10$