Question

Name the program to find out the sum of following series. 1+2+3+4+5+6+7+8+9+10 class 7

Answer 1

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C program to calculate the sum of the series 1-2+3-4+5-6+7-8...N terms

Given the series 1 -2+3-4+5-6+7-8 ... N terms, and we have to find the sum of all values using C program.

Submitted by Anshuman Das, on September 12, 2019

The series is: 1-2+3-4+5-6+7-8...N terms, we have to find out the sum up to Nth terms.

Solution:

Let's analyse this problem,

If we want Sum of this series up to 2nd term then sum will be:

1-2 =-1

Up to 3rd term:

1-2+3 =2

Up to 4th term

1-2+3-4 = -2

Up to 5th term:

1-2+3-4+5= 3

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