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数学
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1x3分之一+3x5分之一+5x7分之一+7x9分之一+……+99x101分之一
让我明白.
人气:277 ℃ 时间:2020-03-23 09:08:38
解答
=1/2*(1-1/3+1/3-1/5+1/5-1/7+1/7-1/9+.+1/99-1/101)
=1/2*(1-1/101)
=1/2*100/101
=50/101
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1\1x3+1\3x5+1\5x7+1\7x9+.+1\99x101=
-1/1X3-1/3X5-1/5X7 -.-1/99X101怎么做?
计算1/1x3+1/3x5+1/5x7+…+1/99x101的值
1/1X3+1/3X5+…….+1/99X101
计算 1/(1X3) + 1/(3X5) + 1/(5X7) + 1/(7X9) + … + 1/(97X99) + 1/(99X101)
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