1/1*3+1/3*5+1/5*7+.+1/99*101

1*1/3+3*1/5+5*1/7+.+97*1/99+99*1/101= 1/(1×3)+1/(3×5)+1/(5×7).+1/(97×99)+1/(99×101) 帮帮忙1/1*3+1/3*5+1/5*7+1/7*9+...1/99*101 1/(1+3)+1/(3+5)+1/(5+7)…+1/(99+101)=( )简便计算 1.计算：1/1*3+1/3*5+1/5*7+……+1/99*101 简算1/1*3+1/3*5+1/5*7+...1/99*101 1／1×3+1／3×5+1／5×7+.+1／99×101怎么做 1×(1/3)+3×(1/5)+5×(1/7)+...+99×(1/101)=多少? 简算:1/(1*3)+1/(3*5)+1/(5*7)+……+1/(99*101)= 1/1×3+1/3×5+1/5×7+…+1/99×101 等于多少啊 计算1/(1*3)+1/(3*5)+1/(5*7)+.+1/(99*101)的值 1/1*3+1/3*5+1/5*7+...+1/99*101=?为什么