4. Hitunglah nilai dari :
11111
234 n
#include <iostream>
#include <conio.h>
#include <math.h>
using namespace std;
class hitung
{
public:
void input();
int proses();
private:
int a;
float bil,hasil,total;
};
void hitung::input(){
cin>>a;
cout<<endl;}
int hitung::proses(){
hasil=0;
total=0;
bil=-1;
for(int j=1; j<=a; j++){
bil=(bil*(-1));
total=bil/j;
hasil+=total;
if(j==1);
cout<<"("<<bil<<"/"<<j<<")";
if(j>1);
cout<<"+("<<bil<<"/"<<j<<")";
}
cout<<endl<<endl<<"hasil penjumlahan deret ="<<hasil;
return hasil;
}
int main()
{
cout<<"menghitung hasil jumlah deret"<<endl;
cout<<"masukan nillai n=";
hitung deret;
deret . input();
deret.proses();
getch();
return 0;
}
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