Series and sequences

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Across
  1. 5. "S" represents what?
  2. 6. A list of numbers where each term is found by multiplying the previous one by a fixed number
  3. 8. The value that a geometric series approaches as the number of terms increases infinitely
  4. 9. "l" represents what?
  5. 10. A number that is larger or smaler than any number
  6. 11. Sum of the terms in an arithmetic sequence
Down
  1. 1. A list of numbers where the difference between consecutive terms is constant
  2. 2. "r" represents what?
  3. 3. "d" represents what?
  4. 4. The sum of the terms in a geometric sequence
  5. 7. "a" represents what?