观察下列三行数:-1,2,-4,8,-16,32,...;①-2,4,-8,16,-32,64...;②0,6,-6,18,-30,66,...;③(1)第①行按什么规律排列?(2)第②③行数与第①行数分别有什么关系?(3)取每行的第n个数,三个数的和能否等于12
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![观察下列三行数:-1,2,-4,8,-16,32,...;①-2,4,-8,16,-32,64...;②0,6,-6,18,-30,66,...;③(1)第①行按什么规律排列?(2)第②③行数与第①行数分别有什么关系?(3)取每行的第n个数,三个数的和能否等于12](/uploads/image/z/108429-69-9.jpg?t=%E8%A7%82%E5%AF%9F%E4%B8%8B%E5%88%97%E4%B8%89%E8%A1%8C%E6%95%B0%3A-1%2C2%2C-4%2C8%2C-16%2C32%2C...%3B%E2%91%A0-2%2C4%2C-8%2C16%2C-32%2C64...%3B%E2%91%A10%2C6%2C-6%2C18%2C-30%2C66%2C...%3B%E2%91%A2%EF%BC%881%EF%BC%89%E7%AC%AC%E2%91%A0%E8%A1%8C%E6%8C%89%E4%BB%80%E4%B9%88%E8%A7%84%E5%BE%8B%E6%8E%92%E5%88%97%3F%EF%BC%882%EF%BC%89%E7%AC%AC%E2%91%A1%E2%91%A2%E8%A1%8C%E6%95%B0%E4%B8%8E%E7%AC%AC%E2%91%A0%E8%A1%8C%E6%95%B0%E5%88%86%E5%88%AB%E6%9C%89%E4%BB%80%E4%B9%88%E5%85%B3%E7%B3%BB%3F%EF%BC%883%EF%BC%89%E5%8F%96%E6%AF%8F%E8%A1%8C%E7%9A%84%E7%AC%ACn%E4%B8%AA%E6%95%B0%2C%E4%B8%89%E4%B8%AA%E6%95%B0%E7%9A%84%E5%92%8C%E8%83%BD%E5%90%A6%E7%AD%89%E4%BA%8E12)
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