下表给出一个三角形数阵 1/4 1/2 1/4 3/4 3/8 3/16已知每一列的数成等差数列,每一行的数成等比数列,每一行的公比都相等,记第i行第j列的数为aij(i>=j)(1)求a83 (2)试写出aij关于i,j的表达式1/4
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![下表给出一个三角形数阵 1/4 1/2 1/4 3/4 3/8 3/16已知每一列的数成等差数列,每一行的数成等比数列,每一行的公比都相等,记第i行第j列的数为aij(i>=j)(1)求a83 (2)试写出aij关于i,j的表达式1/4](/uploads/image/z/369281-65-1.jpg?t=%E4%B8%8B%E8%A1%A8%E7%BB%99%E5%87%BA%E4%B8%80%E4%B8%AA%E4%B8%89%E8%A7%92%E5%BD%A2%E6%95%B0%E9%98%B5+1%2F4+1%2F2+1%2F4+3%2F4+3%2F8+3%2F16%E5%B7%B2%E7%9F%A5%E6%AF%8F%E4%B8%80%E5%88%97%E7%9A%84%E6%95%B0%E6%88%90%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%97%2C%E6%AF%8F%E4%B8%80%E8%A1%8C%E7%9A%84%E6%95%B0%E6%88%90%E7%AD%89%E6%AF%94%E6%95%B0%E5%88%97%2C%E6%AF%8F%E4%B8%80%E8%A1%8C%E7%9A%84%E5%85%AC%E6%AF%94%E9%83%BD%E7%9B%B8%E7%AD%89%2C%E8%AE%B0%E7%AC%ACi%E8%A1%8C%E7%AC%ACj%E5%88%97%E7%9A%84%E6%95%B0%E4%B8%BAaij%EF%BC%88i%3E%3Dj%EF%BC%89%EF%BC%881%EF%BC%89%E6%B1%82a83+%EF%BC%882%EF%BC%89%E8%AF%95%E5%86%99%E5%87%BAaij%E5%85%B3%E4%BA%8Ei%2Cj%E7%9A%84%E8%A1%A8%E8%BE%BE%E5%BC%8F1%2F4)
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