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\begin{aligned} &\int \sqrt{x} \mathrm{dx}=\frac{2}{3} x^{3 / 2}+\mathrm{C} \\ &\int \frac{1}{\sqrt{x}} \mathrm{dx}=2 x^{1 / 2}+\mathrm{C}=2 \sqrt{x}+\mathrm{C} \end{aligned}