JEE MATHEMATICS MCQ: PERMUTATIONS

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From 6 different novels and 3 different dictionaries, 4 novels and 1 dictionary are to be selected and arranged in a row on a shelf, so that the dictionary is always in the middle. The number of such arrangements is

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Correct option: A

Atleast 1000

Option D (2) is correct because the sum of the coefficients of all odd degree terms simplifies to 2 after expansion and simplification.

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