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The antiderivative of $\sqrt{u}$ is found by rewriting the square root as a fractional power, $u^{1/2}$, and then applying the power rule for integration. The power rule states that $\int u^n du = \frac{u^{n+1}}{n+1}$.

Conditions: The integrand is $\sqrt{u}$, which is equivalent to $u^{1/2}$.; The power rule for integration is applicable.; $u \ge 0$ for the real-valued square root form.

The antiderivative of $\sqrt{u}$ is found by rewriting the square root as a fractional power, $u^{1/2}$, and then applying the power rule for integration. The power rule states that $\int u^n du = \frac{u^{n+1}}{n+1}$.

Conditions: The integrand is $\sqrt{u}$, which is equivalent to $u^{1/2}$.; The power rule for integration is applicable.; $u \ge 0$ for the real-valued square root form.