来自林瑞仲的问题
1计算(1+1/11+1/13+1/17)(1/11+1/13+1/17+1/19)-(1+1/11+1/13+1/17+1/19)(1/11+1/13+1/17)2计算(1/2+1/3+.+1/2005)(1+1/2+1/3+.+1/2004)-(1+1/2+...+1/2005)(1/2+1/3+...+1/2004
1计算
(1+1/11+1/13+1/17)(1/11+1/13+1/17+1/19)-(1+1/11+1/13+1/17+1/19)(1/11+1/13+1/17)
2计算
(1/2+1/3+.+1/2005)(1+1/2+1/3+.+1/2004)-(1+1/2+...+1/2005)(1/2+1/3+...+1/2004)
1回答
2020-03-15 23:13