1×2+2×3=2×2²,2×3+3×4=2×3²,3×4+4×5=2×4²……你能发现什么规律?
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/05 16:55:14
![1×2+2×3=2×2²,2×3+3×4=2×3²,3×4+4×5=2×4²……你能发现什么规律?](/uploads/image/z/14152336-16-6.jpg?t=1%C3%972%2B2%C3%973%3D2%C3%972%26%23178%3B%2C2%C3%973%2B3%C3%974%3D2%C3%973%26%23178%3B%2C3%C3%974%2B4%C3%975%3D2%C3%974%26%23178%3B%E2%80%A6%E2%80%A6%E4%BD%A0%E8%83%BD%E5%8F%91%E7%8E%B0%E4%BB%80%E4%B9%88%E8%A7%84%E5%BE%8B%3F)
1×2+2×3=2×2²,2×3+3×4=2×3²,3×4+4×5=2×4²……你能发现什么规律?
1×2+2×3=2×2²,2×3+3×4=2×3²,3×4+4×5=2×4²……你能发现什么规律?
1×2+2×3=2×2²,2×3+3×4=2×3²,3×4+4×5=2×4²……你能发现什么规律?
n(n+1)+(n+1)(n+2)=2*(n+1)^2