Kind of the whole point of an infinite geometric series is that you can't find the sum. If it is infinite, then the sum is infinite.
Step-by-step explanation:
Take a look at the picture, And tell me if am wrong
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This symbol is an <u>absolute value</u> symbol. It means that we are looking for that number's distance from 0. There is no such thing as a negative distance; the distances are all positive, so both ∣9∣ and ∣-9∣ have a value of 9.
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