WAP for the following series.

1^2 - 3^2 + 5^2 - 7^2 + - - - - -  - - -  +101^2

CODE ::

#include <stdio.h>
int main ()
{
    int i,sum=0,sign=1;
    for(i=1;i<=101;i=i+2)
    {
        sum=sum+(i*i)*(sign);
        sign=sign*(-1);
    }
    printf("Sum is %d",sum);
    return 0;
}

WAP for the following series.

1/2 + 1/4 + 1/6 + - - - - - - - - + 1/100

CODE ::

#include <stdio.h>
int main ()
{
    double sum=0;
    int i;
    for(i=2;i<=100;i=i+2)
    {
        sum=sum+(1.0/i);
    }
    printf("Sum is %lf",sum);
    return 0;
}

WAP for the following series.

1-3+5-7+9-11+ --------------------+101


CODE  ::

#include <stdio.h>
int main ()
{
    int i,sum,sign;
    sum=0;
    sign=1;
    for(i=1;i<=101;i=i+2)
    {
        sum=sum+i*sign;
        sign=sign*(-1);
    }
    printf("Summ is %d",sum);
    return 0;
}