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JEE Advanced Mathematics question

MathematicsPermutations and CombinationsJEE Advanced

In the value of the number of zeros at the end is

Answer: (D)

Solution

Trailing zeros come from factors ; factors of 2 are more plentiful, so count the factors of 5 (Legendre's formula):

Missing or unrecognized delimiter for \left\left Missing or unrecognized delimiter for \right\right +

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Question ID VK-107780