Class 11 CS Practical - 44

 

44 - Write a program in Python to input the value of x and n and print the sum of the following series:

1 - x + x² - x³ +x⁴ + -------- xⁿ

x=int(input("Enter the value of x: "))

n=int(input("Enter the value of n: "))

sum=0

for i in range(0,n+1):

    if i%2==0:

        sum=sum+pow(x,i)

    else:

        sum=sum-pow(x,i)

print("Sum of the series=",sum)

Output:

Enter the value of x: 2

Enter the value of n: 3

Sum of the series= -5

 

Enter the value of x: 2

Enter the value of n: 4

Sum of the series= 11