Question

write a program in java to calculate and print the sum of the following series s= x raise to the power 1 + x raised to the power 3 + x raise to the power 5 + x raise to the power 7+ ...............x raise to the power n. Take necessary inputs from the user.​

Answer 1

Question:-

Write a program to calculate and display the sum of the following series.

$\sf S = x + {x}^{3} + ...{x}^{2n - 1}$

Program:-

import java.util.*;

class Sum

{

public static void main(String args[])

{

Scanner sc=new Scanner(System.in);

System.out.print("Enter the value of x: ");

double x=sc.nextDouble(), s=0.0;

System.out.print("Enter the value of n: ");

int n=sc.nextInt(), a=1;

for(int i=1;i<=n;i++,a+=2)

s+=Math.pow(x, a);

System.out.println("The sum of the given series is: "+s);

}

}

Answer 2

Answer:

HERE'S IS YOUR ANSWER

Explanation:

import java.util.*;

class Prg {

           void main() {

Scanner sc = new Scanner(System.in);

int i,n ,x , sum=0;

System.out.println("Enter the VALUE of N: ");

n = sc.nextInt();

System.out.println("Enter the VALUE of X: ");

x = sc.nextInt();

for(i=1;i<=n;i+=2) // i=i+2 is written in short cut as i gets incremented 2 times

{

sum += (int)Math.pow(x,i); // DOUBLE VALUE IS TYPE-CASTED TO INTEGER  

}

System.out.println("SUM: "+sum);

}

}

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