Find \( \int\left(\frac{3}{\sqrt{x}}\right) d x \)

Step 1 ：\int\left(\frac{3}{\sqrt{x}}\right) d x = 3\int\left(x^{-\frac{1}{2}}\right) d x

Step 2 ：3\left(\frac{x^{\frac{1}{2}}}{\frac{1}{2}}+C\right)

Step 3 ：\(6\sqrt{x}+C\)