#include<stdio.h>
void main()
{
int h,i,c=0;
float y[20],x[20],s=0,a,b;
printf("Enter Lower Limit:");
scanf("%f",&a);
printf("Enter Upper Limit:");
scanf("%f",&b);
printf("Enter interval size:");
scanf("%d",&h);
for(i=a;i<=b;i=i+h)
{
x[c++]=i;
}
for(i=0;i<c;i++)
{
y[i]=(1/(1+x[i]));
}
for(i=0;i<(c-1);i++)
{
s=s+(y[i]+y[i+1]);
}
printf("\n");
for(i=0;i<c;i++)
{
printf("%f %f \n",x[i],y[i]);
}
printf("\n");
s=(s*h)/2;
printf("Answer:%f\n",s);
}
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