In order to understand the viewer must pay attention to making sure they account for the zeroes when writing out the sequence. Remember to turn your first term into a fraction so it is easier to work with, as well as your common ratio; after you do so, set up your geometric formula needed for the summation notation. Don't forget to get rid of the double fraction division by multiplying by the reciprocal of the denominator. Also, keep in mind the whole number that was ignored in the beginning. Add it to your final fraction and that will be your final answer. You can check the answer by plugging it into a calculator. Hope this helped!
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