Question:
Mark $(\sqrt{)}$ ) against the correct answer in the following:
$\int_{0}^{q} \frac{\sqrt{x}}{(\sqrt{x}+\sqrt{a-x})} d x=?$
A. $\frac{\mathrm{a}}{2}$
B. $2 a$
C. $\frac{2 a}{3}$
D. $\frac{\sqrt{a}}{2}$
Solution:
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