u = e^{\sqrt{x}} \Rightarrow \frac{\mathrn{d}u}{\mathrm{d}x} = \frac{e^{\sqrt{x}}}{2\sqrt{x}}
u = e^{\sqrt{x}} \Rightarrow \frac{\mathrn{d}u}{\mathrm{d}x} = \frac{e^{\sqrt{x}}}{2\sqrt{x}}
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