1+1/1*3+1/3*5+1/5*7+1/7*9+……+1/99*101
=1+1/2*(1-1/3+1/3-1/5+1/5-1/7+.+1/99-1/101)
=1+1/2 (1-1/101)
=1+1/2*100/101
=1+50/101
=151/101
1+1/1*3+1/3*5+1/5*7+1/7*9+……+1/99*101=?
2个回答
相关问题
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1*3/1+3*5/1+5*7/1+7*9/1+.+97*99/1+99*101/1要计算过程,得数
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计算1/3*1/5+1/5*1/7+1/7*1/9+1/9*1/11……1/99*1/101=?
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1/3+1/3*5+1/5*7.1/99*101
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1/3*2/5+1/5*2/7+ 1/7*2/9+……+1/99*2/101
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1/1*3 + 1/3*5 + 1/5*7 + .+ 1/99*101
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1/1*3+1/3*5+1/5*7+.+1/99*101
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1/1*3+1/3*5+1/5*7+……+1/97*99+1/99*101
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1X1/3+3X1/5+5X1/7+7X1/9+.+99X1/101=?
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1/1*3*5+1/3*5*7+.1/99*101*103
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1×1/3+1/3×1/5+1/5×1/7+1/7×1/9+……+1/99×1/101