• 2022-05-29
    求下列函数的傅里叶级数展开式:[tex=10.071x1.357]5cM/LvJqoCikO7A5c+WCIFvkMrcH8wM/sSdNFcbb5l7CiIY7PXE8owHe7h0e7UQ9[/tex]
  • 由于 [tex=4.5x1.357]5cM/LvJqoCikO7A5c+WCIFj1Alhl77colvLzsgz3lZM=[/tex] 在 [tex=3.071x1.357]UGbKMXer1fUi6HhYH2aB/A==[/tex] 上为奇函数, 即[tex=19.357x5.786]rZM5/OPAdr7aX+kNl9iwpBaCvH9uDTSO2IvX7WStihmyWuSjYB/G5fH1e/FhYv68rPiOZfBSbXFLUv/rRO34eHGAOklgEumesbyABSziMpqDJRUc3+XJ+GO+QIBz5W0BsGj/twMTaKsEubRu7g8PWeMnTmc7q26vhKHfXUf0hWVOy88KRMH5ar1IcFjAy2apGMFqTWMwqnCLVMWHrNozwhf8zuZWWzeCqZNKd+unduo=[/tex]而 [tex=27.571x7.643]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[/tex]即 [tex=9.5x3.286]Shqqk9BHfYAeoZulO2+arUJA8IpGfu1W1syJSvixUeTQUzpXucB7tqgfB1AlRqRlLD/F02UO7RiOtfdWkXKWEP9ZGrv2RTPCrB7KSMnpU5WQXvUXqBOfHYn4b6+boVFc[/tex],故 [tex=22.929x3.714]qAU07a/UMA9qmDdYIFZHihYSgucgEbdIEHEiikG7TqaYSunAOEIpcFCmbyp6m30Ai8XsXU/IfAX31CREkklhrI2MgnnYsDNFKJZuf1kC+gVZEuxbUwtHWv+9qe5QOKVaSmHQ8bCPEI4EFb7pCKs+rvEi1PKF/b+0OAJ9V2/dsaxJT/GfgDx3crTtLPXf8P+d[/tex].

    内容

    • 0

      A=[1 2 3 4 5 6 7 8 9]A(5)=[]A=1 4 7 5 8 3 6 9

    • 1

      下列属于地域型行政区通名的是:(1)省(2)市(3)市辖区(4)自治区(5)县(6)自治县(7)乡(8)镇 (9)特区 A: (1)(2)(4)(5)(7)(8) B: (1)(5)(7) C: (2)(5)(7)(8)(9) D: (2)(3)(5)(6)(7)(8)

    • 2

      下列程序段的执行结果是( )。 x = 5: y = 7: z = 8 If x < y Then t = x: x = y: y = t End If If y < z Then t = y: y = z: z = t If x < y Then t = x: x = y: y = t End If End If Print x, y, z A: 8 5 7 B: 8 7 5 C: 5 7 8 D: 7 5 8

    • 3

      5 3 8 12 7 5 4 5 14 6 2 9 7 8 7 13 6 9 A: 10 B: 15 C: 11 D: 17

    • 4

      正常成年人血量约为体重的() A: 3%~5% B: 5%~7% C: 7%~8% D: 8%~9% E: 9%~10%