{1}/{\sqrt{9}−\sqrt{8}}− {1}/{\sqrt{8}−\sqrt{7}} + {1}/{\sqrt{7}−\sqrt{6}}− {1}/{\sqrt{6}−\sqrt{5}} + {1}/{\sqrt{5}−\sqrt{4}} =

Telangana Police Constable Prelims 2018 Paper

Question : 100 of 200

Marks: +1, -0

\;{1}/{{√{9}}−{√{8}}}−\;{1}/{{√{8}}−{√{7}}} + \;{1}/{{√{7}}−{√{6}}}−\;{1}/{{√{6}}−{√{5}}} + \;{1}/{{√{5}}−{√{4}}} =

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