A) \[\frac{1}{2}\]
B) \[\frac{1}{3}\]
C) \[\frac{2}{5}\]
D) \[\frac{5}{6}\]
Correct Answer: D
Solution :
Given that \[{{u}_{n}}=\frac{1}{n}-\frac{1}{n+1}\] Now, \[{{u}_{1}}+{{u}_{2}}+{{u}_{3}}+{{u}_{4}}+{{u}_{5}}\] \[=\frac{1}{1}-\frac{1}{6}=\frac{6-1}{6}=\]You need to login to perform this action.
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