Find the sum of the expression \(\frac{1}{\sqrt{1}+\sqrt{2}}+\frac{1}{\sqrt{2}+…
20132013
Find the sum of the expression
\(\frac{1}{\sqrt{1}+\sqrt{2}}+\frac{1}{\sqrt{2}+\sqrt{3}}+\frac{1}{\sqrt{3}+\sqrt{4}}+............+\frac{1}{\sqrt{80}+\sqrt{81}}\)
Answer: B. 8
- A.
7
- B.
8
- C.
9
- D.
10
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Correct answer: B
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