Q ) Write a C program to read in two numbers, x and n, and then compute the sum of this geometric progression.
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 sense for 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.