JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

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\sum\limits_{{i=1}}^n \sum\limits_{{j=1}}^i \sum\limits_{{k=1}}^j 1=

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Correct option: C

\frac{n(n+1)(n+2)}{6}

Option C (

\frac{n(n+1)(n+2)}{6}

) is correct because evaluating the triple summation results in the given expression.

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