• 2022-05-30
    判断下列序列是否是周期性的,若是周期性的,试确定其周期。[tex=9.714x1.571]0UCYOR648dLmxrDQB8GEZyM8F6BsU9q+vrsQclIPF4lhnp9W1mzIBAL3q+OgE00qaOfXyAH8N2RcqLSz+5lgN1L3+9LB16RFNQe9zhzmPeA=[/tex]
  • 由[tex=26.429x4.143]N/b0FGNnH7JVrl95ugLLk/JZe0NAtI/beU0iJnnkQ4wug3aunWfLE8iwO7ytTH20ZSG+F1hCeC2bVWpNSh+2BBOnsVjCWQ+tdsLrjxLz8zcpaPPNxxcQgOrLWhzl6gFT8NZUvyc2FUxM5e79CBhgsXjITlpGzqRdOKbudusKOHgBb8SVqvUT4TOXbkgfWaZbcpslY9q6a91spmyqL74PbbS/7XiXOFkJ6h2fMp2ct+e3uuWWJKS38BxPk0qN0eu+CrX909sO+7k2VF1SUiVGzBVCtSujv6x9oW7a4+PGTI467xcQGALUQodQzRZuJCEXVpBspyP79aWxQJLY4pv7yksCONDaquQv/kcKq+umh78f1loa2oVE1jUCZTb7/AFo[/tex],  [tex=3.929x2.5]KX4uLQlE46g1ALP0tppN0p+MzwGVXoyVDhmRgovE3iEEv7Y6UB+byBUHn6vz9T45[/tex]均为有理数。所以[tex=2.0x1.357]gpsoEij6f4Acj8QZS8DqVw==[/tex]是周期的。周期 56 。

    举一反三

    内容

    • 0

      >>>x= [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9]>>>print(x.sort()) 语句运行结果正确的是( )。 A: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] B: [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9] C: [10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0] D: ['2', '4', '0', '6', '10', '7', '8', '3', '9', '1', '5']

    • 1

      【单选题】请用地点定桩法在4分钟内记忆数字。 4 0 1 3 6 3 5 1 9 8 8 9 7 2 9 3 0 9 5 3 1 7 7 5 2 3 3 0 5 0 1 4 1 3 8 3 5 7 9 7 (5.0分) A. 已背 B. 未背

    • 2

      判断下列序列是否是周期性的,若是周期性的,试确定其周期。[tex=8.714x1.357]4BWH8+65xroQ7U16aRk88q464kF6CIEBuZ+oGsNj0cc=[/tex]

    • 3

      当执行下面的语句定义一维数组a后,此数组的所有元素为 ( ) inta[10]; A.a[1],a[2],a[3],a[4],a[5],a[6],a[8],a[9],a[10],a[10] B.a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9] C.a[0],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],a[10] D.a[1],a[2],a [3],a[4],a [5],a [9],a [7],a [8],a [9],a [10],a [11]

    • 4

      set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为? A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}