Question

WAP to find the sum of the series S=1/1!+2/2!+3/3!+4/4!+.......+n/n!​

Answer 1

Answer:

#include<iostream.h>

#include<conio.h>

#include<math.h>

void main()

{

clrscr();

float i,x,sum=1,p=1;

int n;

cout<<" \n 1+x^1/1! + x^2/2! + ... +x^n/n! ";

cout<<" \n Enter the value of x : ";

cin>>x;

cout<<" \n Enter the value of n : ";

cin>>n;

for(i=1;i<=n;i++)

{

p=p*x/i;

sum=sum+p;

}

cout<<"\n Sum="<<sum;

getch();

}

Explanation:

C++ code