Question

Plss answer this question .It's urgent ....
plss fast....​

Answer 1

Answer:

class Choice

{

void SumSeries(int n,double x)

{

double sum=0.0;

int i;

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

{

if(i%2==0)

sum=sum-(double)x/i;

else

sum=sum+(double)x/i;

}

System.out.println("Sum of first series:"+sum);

}

void SumSeries()

{

int i,p=1,sum1=0;

for(i=1;i<=20;i++)

{

p=p*i;

sum1=sum1+p;

}

System.out.println("Sum of second series:"+sum1);

}

public static void main(String args[])

{

Scanner in=new Scanner(System.in);

int n;

double x;

System.out.println("enter last limit of the series");

n=in.nextInt();

System.out.println("enter the value of x");

x=in.nextDouble();

Choice ob=new Choice();

ob.SumSeries(n,x);

ob.SumSeries();

}

}

Explanation:

plz markbrainlist