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week-9x week-9x Document Transcript

  • /*Write a C program to read in two numbers, x and n, and then compute the sum of this geometricprogression:1+x+x2+x3+………….+xn For example: if n is 3 and x is 5, then the program computes 1+5+25+125.Print x, n, the sum Perform error checking. For example, the formula does not make sensefor negative exponents - if n is less than 0. Have your program print an error message if n<0,then go back and read in the next pair of numbers of without computing the sum.Are any values of x also illegal ? If so, test for them too. */#include<stdio.h>#include<conio.h>#include<math.h>void main(){int s_sum,i,x,n;clrscr();printf("Enter the values for x and n:");scanf("%d %d",&x,&n);if(n<=0 || x<=0){ printf("Value is not validn");}else
  • { printf("Value is validn"); s_sum=1; for(i=1;i<=n;i++) { s_sum=s_sum+pow(x,i); } printf("Sum of series=%dn",s_sum);}getch();}