Question

Write a program to find and display the sum of the given series:s = 1 –a + a2–a3+ .......... + a10

Answer 1

I'll be using python here,

It goes like:

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a=input("Enter the number list: ")

sum= 0

for i in range(0, len(a)):

if i%2==0:

sum+=i

else:

sum-=1

print("The sum of the series will be", sum)

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What I did here?

I accepted 1, a1, a2.. a10 in form of a list in the program and then added it to 0 with a variable sum if the number is at even position (for even numbers i%2 will be 0) and subtracted those with odd positions.