1×2+2×3+3×4+4×5+5×6+6×7+7×8+8×9··········+100×101等于多少?
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:2024/07/18 00:14:05
1×2+2×3+3×4+4×5+5×6+6×7+7×8+8×9··········+100×101等于多少?
1×2+2×3+3×4+4×5+5×6+6×7+7×8+8×9··········+n(n+1)
这个要代数式.
1×2+2×3+3×4+4×5+5×6+6×7+7×8+8×9··········+n(n+1)
这个要代数式.
![1×2+2×3+3×4+4×5+5×6+6×7+7×8+8×9··········+100×101等于多少?](/uploads/image/z/7009319-47-9.jpg?t=1%C3%972%2B2%C3%973%2B3%C3%974%2B4%C3%975%2B5%C3%976%2B6%C3%977%2B7%C3%978%2B8%C3%979%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%C2%B7%2B100%C3%97101%E7%AD%89%E4%BA%8E%E5%A4%9A%E5%B0%91%3F)
![](http://img.wesiedu.com/upload/9/9a/99a24c8cc6c88df627b3600ccd5ebe4a.jpg)
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