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JEE Main 2012 Mathematics question

MathematicsPermutations and CombinationsJEE Main 2012

If , then the value of is given by

Answer: (1)

Solution

, so Missing superscript or subscript argument{}^nC_2\frac{n(n - 1)}{2}\frac{m(m - 1)(m^2 - m - 2)}{8}$ =

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Question ID VK-103600