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//Calcular la siguiente serie:
//	S=x^1/1-〖x^2/2+x^3/3- ......+/-x^n/n.〗^
#include <iostream>
#include <math.h>
using namespace std;

int main()
{
    int cant = 0, N = 0;
    float x = 0, prod = 0;
    cout << "Ingrese el valor de N: ";
    cin >> N;
    cout << "Ingrese el valor de x: ";
    cin >> x;
    while (cant < N)
    {
        cant = cant + 1;
        if (cant % 2 == 0)
        {
            prod = prod - (pow(x, cant) / cant);
        }
        else
        {
            prod = prod + (pow(x, cant) / cant);
        }
    }
    cout << "La Suma total es: " << prod << endl;
    return 0;
}
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