ex9

#include <iostream>
using namespace std;

int main()
{ // problema 9
  unsigned n,e=0,i;
  float x,S=0,p=1.0;
  cout<<"x=";cin>>x;
  cout<<"n=";cin>>n;
  for (i=1;i<=n;i++)
  {
      p*=x;
      e+=i;
      S+=p/e;
  }
    cout<<"S="<<S;
     return 0;
}