Question

(e) 2 - 4 + 6 - 8 + ............
.......................... - 20
write a program in Java to find the sum of the series ​

Answer 1

Answer:

class exp{

   void main(){

       int s=0;

       for(int i=2,k=1;i<=20;i+=2){

           s+=(k*i);

           k=-k;

       }

       System.out.println("the sum is "+s);

   }

}

Answer 2

Answer:

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