Prove that, for every permutation 21, 22, ..., 2020, 22021 of 1,2,..., 2020, 2021, the product...

Question

Question

Prove that, for every permutation 21, 22, ..., 2020, 22021 of 1,2,..., 2020, 2021, the product (a1 - 1)(az - 2) ... (22020 –

Answer 1

Answer #1

Doubt or confusion in any step then comment below...i will help you..

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please thumbs up for this solution..thanks..

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here we have to show that atleast one number in product is even ..then we done ..

Answer 2

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