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$\int_{}^{} {\sqrt {\frac{{a - x}}{x}} \;dx = } $

• ✓
  $a\left[ {{{\sin }^{ - 1}}\sqrt {\frac{x}{a}} + \sqrt {\frac{x}{a}} \sqrt {\frac{{a - x}}{a}} } \right] + c$
• B
  ${\sin ^{ - 1}}\frac{x}{a} + \frac{x}{a}\sqrt {{a^2} - {x^2}} + c$
• C
  $a\left[ {{{\sin }^{ - 1}}\frac{x}{a} - \frac{x}{a}\sqrt {{a^2} - {x^2}} } \right] + c$
• D
  ${\sin ^{ - 1}}\frac{x}{a} - \frac{x}{a}\sqrt {{a^2} - {x^2}} + c$