By using algebraical method prove that the product of two consecutive odd numbers are a multiple of 4 with remainder 3
Working is required, thx!
Odd numbers
2008-11-10 7:46 am
回答 (1)
2008-11-10 8:21 am
✔ 最佳答案
設兩個正單數(2N+1) , (2N-1)(2N+1)(2N-1)=4N^2 - 1
=4N^2 - 4 + 3
=4(N^2 -1 ) +3
收錄日期: 2021-04-13 18:53:28
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