观察:3²-1²=8,5²-3²=16,7²-5²=24,9²-7²=32……(1)根据上述规律填空:13²-11²=,19²-17²=;(2)你能用含n的等式表示这个规律吗?并说明它的正确性.
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/31 00:09:49
![观察:3²-1²=8,5²-3²=16,7²-5²=24,9²-7²=32……(1)根据上述规律填空:13²-11²=,19²-17²=;(2)你能用含n的等式表示这个规律吗?并说明它的正确性.](/uploads/image/z/369192-48-2.jpg?t=%E8%A7%82%E5%AF%9F%EF%BC%9A3%26%23178%3B-1%26%23178%3B%3D8%2C5%26%23178%3B-3%26%23178%3B%3D16%2C7%26%23178%3B-5%26%23178%3B%3D24%2C9%26%23178%3B-7%26%23178%3B%3D32%E2%80%A6%E2%80%A6%EF%BC%881%EF%BC%89%E6%A0%B9%E6%8D%AE%E4%B8%8A%E8%BF%B0%E8%A7%84%E5%BE%8B%E5%A1%AB%E7%A9%BA%EF%BC%9A13%26%23178%3B-11%26%23178%3B%3D%2C19%26%23178%3B-17%26%23178%3B%3D%EF%BC%9B%EF%BC%882%EF%BC%89%E4%BD%A0%E8%83%BD%E7%94%A8%E5%90%ABn%E7%9A%84%E7%AD%89%E5%BC%8F%E8%A1%A8%E7%A4%BA%E8%BF%99%E4%B8%AA%E8%A7%84%E5%BE%8B%E5%90%97%3F%E5%B9%B6%E8%AF%B4%E6%98%8E%E5%AE%83%E7%9A%84%E6%AD%A3%E7%A1%AE%E6%80%A7.)
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来源:学生作业帮助网 编辑:作业帮 时间:2024/07/31 00:09:49