计算(2/1×2×3)+(2/2×3×4)+(2/3×4×5)+(2/4×5×6)+……+(2/99×100×101)+
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/07/03 12:03:16
计算(2/1×2×3)+(2/2×3×4)+(2/3×4×5)+(2/4×5×6)+……+(2/99×100×101)+(2/100×101×102)
![计算(2/1×2×3)+(2/2×3×4)+(2/3×4×5)+(2/4×5×6)+……+(2/99×100×101)+](/uploads/image/z/15863122-10-2.jpg?t=%E8%AE%A1%E7%AE%97%282%2F1%C3%972%C3%973%29%2B%282%2F2%C3%973%C3%974%29%2B%282%2F3%C3%974%C3%975%29%2B%282%2F4%C3%975%C3%976%29%2B%E2%80%A6%E2%80%A6%2B%282%2F99%C3%97100%C3%97101%29%2B)
原式=1/1×2-1/2×3+1/2×3-1/3×4+……+1/100×101-1/101×102
=1/1×2-1/101×102
=2575/5151
=1/1×2-1/101×102
=2575/5151
计算1-2+3-4+5-6+…+99-100.
计算:(+1)+(-2)+(+3)+(-4)+……+(+99)+(-100)+(+101).
计算:101-100+99-98+...+5-4+3-2+1
计算 递等式计算|-2|+|5|-|-4|
计算(-1)+(+2)+(-3)+(+4)+(-5)+(+6)+.+(-99)+(+100)
计算1-2+3-4+5-6+...+99-100
计算:(2+4+6+8+...100)-(1+3+5+...+99)
"2计算"和"3计算",
3/5-(1/2-1/4)计算,
1-2+3-4+5-6+……+99-100+101的简便计算
计算:(1) 1+(-2)+3+(-4)+…+99+(-100) (2)
计算:(-1)+(+2)+(-3)+(+4)+…+(+100)+(-101) 要简算,