X. To find sum of series 1+2+3+.....+N User will input only N value. Ex: User will input N = 5 Then output will be 15 1 + 2 + 3 + 4 + 5 = 15 xi. To find sum of series 1+3+5+.....+N User will input only N value. Ex: User will input N = 10 Then output will be = 25 1+ 3 + 5 + 7 + 9 = 25