1√a1+√a2+1√a2+√a3+1√a3+√a4+…+1√n1+√an

1.	1√a1+√a2+1√a2+√a3+1√a3+√a4+…+1√n1+√an
Answer» $\frac{1}{\sqrt{a_{1}} + \sqrt{a_{2}}} + \frac{1}{\sqrt{a_{2}} + \sqrt{a_{3}}} + \frac{1}{\sqrt{a_{3}} + \sqrt{a_{4}}} + \dots + \frac{1}{\sqrt{n_{1}} + \sqrt{a_{n}}}$

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