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$\int_{}^{} {\frac{{dx}}{{\sqrt {1 + x} + \sqrt x }} = } $

• A
  $\frac{2}{3}{(1 + x)^{2/3}} - \frac{2}{3}{x^{2/3}} + c$
• B
  $\frac{3}{2}{(1 + x)^{2/3}} + \frac{3}{2}{x^{2/3}} + c$
• C
  $\frac{3}{2}{(1 + x)^{3/2}} + \frac{3}{2}{x^{3/2}} + c$
• ✓
  $\frac{2}{3}{(1 + x)^{3/2}} - \frac{2}{3}{x^{3/2}} + c$