Oues: - If each \( a_{i}>0 \& a_{1}, a_{2}, a_{3} \ldots, a_{n} \) are in H.P. then the expression:- \[ \frac{\sqrt{a_{1} a_{2}}}{\sqrt{a_{1}}+\sqrt{a_{2}}}+\frac{\sqrt{a_{2} a_{3}}}{\sqrt{a_{2}}+\sqrt{a_{3}}}+\ldots .+\frac{\sqrt{a_{n-1} a_{n}}}{\sqrt{a_{n-1}}+\sqrt{a_{n}}} \]
