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JEE MATHEMATICS MCQ: PERMUTATIONS

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\sum\limits_{0 \leqslant i} {\sum\limits_{ < j < } {\sum\limits_{k < l} {\sum\limits_{ \leqslant n} {} } } }

is equal to

View answer and explanation

Correct option: B

n^{n+1} C_4

Option A is correct because the given expression represents the number of ways to choose 4 distinct elements from the set {0, 1, 2, ..., n}.

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