数学计算：
直接输入数学计算式，点击“下一步”按钮，即可获得计算答案。
它支持数学函数（包括三角函数）。
直接输入数学计算式，点击“下一步”按钮，即可获得计算答案。
它支持数学函数（包括三角函数）。
当前位置：数学运算 > 数学计算史 > 答案
总述：本次共解1题。其中
☆算术计算1题
〖1/1算式〗
作业：求算式 1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90+1/10 的值.
题型：数学计算
解:
1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90+1/10
=0.5+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90+1/10
=0.5+0.166667+1/12+1/20+1/30+1/42+1/56+1/72+1/90+1/10
=0.5+0.166667+0.083333+1/20+1/30+1/42+1/56+1/72+1/90+1/10
=0.5+0.166667+0.083333+0.05+1/30+1/42+1/56+1/72+1/90+1/10
=0.5+0.166667+0.083333+0.05+0.033333+1/42+1/56+1/72+1/90+1/10
=0.5+0.166667+0.083333+0.05+0.033333+0.02381+1/56+1/72+1/90+1/10
=0.5+0.166667+0.083333+0.05+0.033333+0.02381+0.017857+1/72+1/90+1/10
=0.5+0.166667+0.083333+0.05+0.033333+0.02381+0.017857+0.013889+1/90+1/10
=0.5+0.166667+0.083333+0.05+0.033333+0.02381+0.017857+0.013889+0.011111+1/10
=0.5+0.166667+0.083333+0.05+0.033333+0.02381+0.017857+0.013889+0.011111+0.1
=0.666667+0.083333+0.05+0.033333+0.02381+0.017857+0.013889+0.011111+0.1
=0.75+0.05+0.033333+0.02381+0.017857+0.013889+0.011111+0.1
=0.8+0.033333+0.02381+0.017857+0.013889+0.011111+0.1
=0.833333+0.02381+0.017857+0.013889+0.011111+0.1
=0.857143+0.017857+0.013889+0.011111+0.1
=0.875+0.013889+0.011111+0.1
=0.888889+0.011111+0.1
=0.9+0.1
=1
答案:1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90+1/10=1
☆算术计算1题
〖1/1算式〗
作业：求算式 1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90+1/10 的值.
题型：数学计算
解:
1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90+1/10
=0.5+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90+1/10
=0.5+0.166667+1/12+1/20+1/30+1/42+1/56+1/72+1/90+1/10
=0.5+0.166667+0.083333+1/20+1/30+1/42+1/56+1/72+1/90+1/10
=0.5+0.166667+0.083333+0.05+1/30+1/42+1/56+1/72+1/90+1/10
=0.5+0.166667+0.083333+0.05+0.033333+1/42+1/56+1/72+1/90+1/10
=0.5+0.166667+0.083333+0.05+0.033333+0.02381+1/56+1/72+1/90+1/10
=0.5+0.166667+0.083333+0.05+0.033333+0.02381+0.017857+1/72+1/90+1/10
=0.5+0.166667+0.083333+0.05+0.033333+0.02381+0.017857+0.013889+1/90+1/10
=0.5+0.166667+0.083333+0.05+0.033333+0.02381+0.017857+0.013889+0.011111+1/10
=0.5+0.166667+0.083333+0.05+0.033333+0.02381+0.017857+0.013889+0.011111+0.1
=0.666667+0.083333+0.05+0.033333+0.02381+0.017857+0.013889+0.011111+0.1
=0.75+0.05+0.033333+0.02381+0.017857+0.013889+0.011111+0.1
=0.8+0.033333+0.02381+0.017857+0.013889+0.011111+0.1
=0.833333+0.02381+0.017857+0.013889+0.011111+0.1
=0.857143+0.017857+0.013889+0.011111+0.1
=0.875+0.013889+0.011111+0.1
=0.888889+0.011111+0.1
=0.9+0.1
=1
答案:1/2+1/6+1/12+1/20+1/30+1/42+1/56+1/72+1/90+1/10=1
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