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].
举一反三
- 【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=
- 【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
- 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}
- >>>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']
- 优质汽车清洁香波的PH值应当为()。 A: 55~65 B: 65~70 C: 70~75 D: 75~80
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%