1/1x2+1/2x3+1/3x4+1/4x5+.+1/98x99+1/99x100

1/1x2+1/2x3+1/3x4+1/4x5+.+1/98x99+1/99x100

用简便运算.

问答/331℃/2024-05-09 13:07:46

优质解答：

=1-1/2+1/2-1/3+1/3-1/4+1/4-1/5******+1/98-1/99+1/99-1/100

=1-1/100

=99/100

我来回答

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