来自陈高阳的问题
数学八年级下册轻巧夺冠50页第25题1/(a-1)+1/(a-1)(a-2)+1/(a-2)(a-3)+1/(a-3)(a-4)+...+1/(a-99)(a-100)
数学八年级下册轻巧夺冠50页第25题
1/(a-1)+1/(a-1)(a-2)+1/(a-2)(a-3)+1/(a-3)(a-4)+...+1/(a-99)(a-100)
1回答
2020-03-30 23:09