The mathematical formula to find the sum of 1²+2²+3²+….+n² is n(n+1)(2n+1)/6
So to find the sum of series we use this formula.
Program:
n = int(input("Enter Positive Number : "))
sum = 0
sum= (n*(n+1)*(2*n + 1))/6
print("The Sum of Series is",sum)
Output:
Enter Positive Number : 5
The Sum of Series is 55.0
Write a Python function to calculate the factorial of a number (a non-negative integer). The function accepts the number as an argument. This program is most for O Level Practical Exam so read it care
This program is most for O Level practical Exam so read it carefully. Write a Python program that accepts a hyphen-separated sequence of words as input and prints the words in a hyphen-separated seque
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