2×4⼀1+4×6⼀1+6×8⼀1....+2006×2008⼀1探究并计算为什么

2024-12-19 02:21:19
推荐回答(2个)
回答1:

2×4/1+4×6/1+6×8/1....+2006×2008/1
=(1/2-1/4+1/4-1/6+1/6-1/8+……+1/2006-1/2008)÷2
=(1/2-1/2008)÷2
=1003/2008÷2
=1003/4016

回答2:

是啊