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a guest Feb 19th, 2019 71 Never
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  1. import math
  2. def sum1(n):
  3.     suma=0
  4.     for i in range(1,n+1):
  5.         suma+=i
  6.     return suma
  7. def sum2(n):
  8.     suma=0
  9.     for i in range(1,n+1):
  10.         suma+=2*i-1
  11.     return suma
  12. def sum3(n):
  13.     suma=0
  14.     for i in range(1,n+1):
  15.         suma+=1/(i**2+i)
  16.     return suma
  17. def sum4(n,x):
  18.     suma=0
  19.     for i in range(1,n+1):
  20.         suma+=x**(1/(i+1))
  21.     return suma
  22. def sum5(n):
  23.     suma=0
  24.     for i in range(0,n):
  25.         suma+=(-2)**i
  26.     return suma
  27. def sum6(n):
  28.     suma=0
  29.     for i in range(1,n+1):
  30.         suma+=1/i**3
  31.     return suma
  32. def sum7(n):
  33.     suma=0
  34.     for i in range(1,n+1):
  35.         suma+=(-1)**i
  36.     return suma
  37. def ilo1(n):
  38.     ilo=0
  39.     for i in range(1,n+1):
  40.         ilo*=i-1
  41.     return ilo
  42. def ilo2(n):
  43.     ilo=0
  44.     for i in range(1,n+1):
  45.         ilo=i**(-i)
  46.     return ilo
  47. def ilo3(n):
  48.     ilo=0
  49.     for i in range(1,n+1):
  50.         ilo=1/i**3
  51.         return ilo
  52.    
  53. print(sum1(3))
  54. print(sum2(4))
  55. print(round(sum3(5),2))
  56. print(sum4(1,9))
  57. print(sum5(5))
  58. print(round(sum6(6),2))
  59. print(sum7(7))
  60. print(ilo1(4))
  61. print(ilo2(2))
  62. print(ilo3(7))
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