已知1的立方=1/4×1²×2²,1³+2³=9=1/4×2²×3²,1³+2³+3³=36=1/4×3²×4².猜想:1³+2³+3³+…+n³=1/4×( )²×( )².利用上述结果计算:2³+3³+
来源:学生作业帮助网 编辑:作业帮 时间:2024/09/02 22:31:31
![已知1的立方=1/4×1²×2²,1³+2³=9=1/4×2²×3²,1³+2³+3³=36=1/4×3²×4².猜想:1³+2³+3³+…+n³=1/4×( )²×( )².利用上述结果计算:2³+3³+](/uploads/image/z/13438510-70-0.jpg?t=%E5%B7%B2%E7%9F%A51%E7%9A%84%E7%AB%8B%E6%96%B9%3D1%2F4%C3%971%26%23178%3B%C3%972%26%23178%3B%2C1%26%23179%3B%2B2%26%23179%3B%3D9%3D1%2F4%C3%972%26%23178%3B%C3%973%26%23178%3B%2C1%26%23179%3B%2B2%26%23179%3B%2B3%26%23179%3B%3D36%3D1%2F4%C3%973%26%23178%3B%C3%974%26%23178%3B.%E7%8C%9C%E6%83%B3%EF%BC%9A1%26%23179%3B%2B2%26%23179%3B%2B3%26%23179%3B%2B%E2%80%A6%2Bn%26%23179%3B%3D1%2F4%C3%97%EF%BC%88+%EF%BC%89%26%23178%3B%C3%97%EF%BC%88+%EF%BC%89%26%23178%3B.%E5%88%A9%E7%94%A8%E4%B8%8A%E8%BF%B0%E7%BB%93%E6%9E%9C%E8%AE%A1%E7%AE%97%EF%BC%9A2%26%23179%3B%2B3%26%23179%3B%2B)
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