简算 1/2+1/6+1/12+······+1/9900
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简算1/2+1/6+1/12+······+1/9900简算1/2+1/6+1/12+······+1/9900简算1/2+1/6+1/12+······+1/99001/2+1/6+1/12+···
简算 1/2+1/6+1/12+······+1/9900
简算 1/2+1/6+1/12+······+1/9900
简算 1/2+1/6+1/12+······+1/9900
1/2+1/6+1/12+······+1/9900
=1/(2+6+12+……+9900)
数太大了 算不过来
1/2+1/6+1/12+······+1/9900 = 1- 1/2 + 1/2 -1/3 +1/3 -1/4 + ...........+ 1/99 -1/100 = 1 - 1/100 = 99/100
简算 1/2+1/6+1/12+······+1/9900
1/2+1/6+1/12+·····+1/90怎么算
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