Find the sum of the expression {1}/{\sqrt{1} + \sqrt{2}} + {1}/{\sqrt{2} + \sqrt{3}} + {1}/{\sqrt{3} + \sqrt{4}} + \ldots + {1}/{\sqrt{80} + \sqrt{81}}

GATE Computer Science (CS) 2013 Solved Paper

Question : 6 of 65

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Find the sum of the expression

\;{1}/{{√{1}} + {√{2}}} + \;{1}/{{√{2}} + {√{3}}} + \;{1}/{{√{3}} + {√{4}}} + … + \;{1}/{{√{80}} + {√{81}}}

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