帮我解一下这道数学题巧算(2/1-1)*(3/1-1)*(4/1-1)*(5/1-1)*(6/1-1)*(7/1-1)*(8/1-1)*(9/1-1)*(10/1-1)

来源:学生作业帮助网 编辑:作业帮 时间:2024/06/06 20:19:38
帮我解一下这道数学题巧算(2/1-1)*(3/1-1)*(4/1-1)*(5/1-1)*(6/1-1)*(7/1-1)*(8/1-1)*(9/1-1)*(10/1-1)
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帮我解一下这道数学题巧算(2/1-1)*(3/1-1)*(4/1-1)*(5/1-1)*(6/1-1)*(7/1-1)*(8/1-1)*(9/1-1)*(10/1-1)
帮我解一下这道数学题巧算
(2/1-1)*(3/1-1)*(4/1-1)*(5/1-1)*(6/1-1)*(7/1-1)*(8/1-1)*(9/1-1)*(10/1-1)

帮我解一下这道数学题巧算(2/1-1)*(3/1-1)*(4/1-1)*(5/1-1)*(6/1-1)*(7/1-1)*(8/1-1)*(9/1-1)*(10/1-1)
=(-1/2)*(-2/3)*(-3/4)*(-4/5)*(-5/6)*(-6/7)*(-7/8)*(-8/9)*(-9/10)
=-1/10

题目错没错啊