有一组等式:①2²—1²=3 ②3²—2²=5 ③4²—3²=7,请观察它们的构成规律,用有一组等式:①2²—1²=3 ②3²—2²=5 ③4²—3²=7,请观察它们的构成规律,用你发现的
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![有一组等式:①2²—1²=3 ②3²—2²=5 ③4²—3²=7,请观察它们的构成规律,用有一组等式:①2²—1²=3 ②3²—2²=5 ③4²—3²=7,请观察它们的构成规律,用你发现的](/uploads/image/z/597175-7-5.jpg?t=%E6%9C%89%E4%B8%80%E7%BB%84%E7%AD%89%E5%BC%8F%3A%E2%91%A02%26%23178%3B%E2%80%941%26%23178%3B%3D3+%E2%91%A13%26%23178%3B%E2%80%942%26%23178%3B%3D5+%E2%91%A24%26%23178%3B%E2%80%943%26%23178%3B%3D7%2C%E8%AF%B7%E8%A7%82%E5%AF%9F%E5%AE%83%E4%BB%AC%E7%9A%84%E6%9E%84%E6%88%90%E8%A7%84%E5%BE%8B%2C%E7%94%A8%E6%9C%89%E4%B8%80%E7%BB%84%E7%AD%89%E5%BC%8F%3A%E2%91%A02%26%23178%3B%E2%80%941%26%23178%3B%3D3+%E2%91%A13%26%23178%3B%E2%80%942%26%23178%3B%3D5+%E2%91%A24%26%23178%3B%E2%80%943%26%23178%3B%3D7%2C%E8%AF%B7%E8%A7%82%E5%AF%9F%E5%AE%83%E4%BB%AC%E7%9A%84%E6%9E%84%E6%88%90%E8%A7%84%E5%BE%8B%2C%E7%94%A8%E4%BD%A0%E5%8F%91%E7%8E%B0%E7%9A%84)
有一组等式:①2²—1²=3 ②3²—2²=5 ③4²—3²=7,请观察它们的构成规律,用有一组等式:①2²—1²=3 ②3²—2²=5 ③4²—3²=7,请观察它们的构成规律,用你发现的
有一组等式:①2²—1²=3 ②3²—2²=5 ③4²—3²=7,请观察它们的构成规律,用
有一组等式:①2²—1²=3 ②3²—2²=5 ③4²—3²=7,请观察它们的构成规律,用你发现的
规律写出第五个等式,第n个等式呢?
有一组等式:①2²—1²=3 ②3²—2²=5 ③4²—3²=7,请观察它们的构成规律,用有一组等式:①2²—1²=3 ②3²—2²=5 ③4²—3²=7,请观察它们的构成规律,用你发现的
(n+1)²-n²=2n+1