20. Program to calculate and display the sum of the following series using for loop: 1 + 2x + 3x^2 + 4x^3 + 5x^4
Chapter 6:
Looping Structures
Programming Exercise
Problem # 20:
Write a program to calculate and display the sum of the following series using for loop:
1 + 2x + 3x^2 + 4x^3 + 5x^4
Solution:
#include<iostream>
#include<conio.h>
using namespace std;
#include<math.h>
int main()
{
int x, n=1, num, sum=0;
cout<<"Enter the value of x:";
cin>>x;
for(num=0;num<=4;num++)
{
sum=sum+(n*pow(x,num));
n++;
}
cout<<"\nSum of the series is:"<<sum;
return 0;
}
#include<conio.h>
using namespace std;
#include<math.h>
int main()
{
int x, n=1, num, sum=0;
cout<<"Enter the value of x:";
cin>>x;
for(num=0;num<=4;num++)
{
sum=sum+(n*pow(x,num));
n++;
}
cout<<"\nSum of the series is:"<<sum;
return 0;
}
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19. Program to calculate and display sum of the following series using for loop: 1! + 2! + 3! + 4! + 5!
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