Answer:
An example of an infinite geometric series having no sum is a1 + a1r + a1r2 + a1r3 + a1r4 and so on. 8+12+18+27+... if it exists. Since r=32 is not less than one, the series does not converge. That is, it has no sum.
Step-by-step explanation:
I used some info from the first answer and I got a 100 for this by adding more to the answer :)