JEE MATHEMATICS MCQ: SEQUENCE OF SERIES

1 Easy

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Understanding +4 | -1

The value of

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

, is

View answer and explanation

Correct option: D

none of these

Option D (none of these) is correct because the correct result is

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

, which doesn't match any of the given summations.

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\frac{3}{4}