Question

A sequence follows the position-to-term rule: term = 2 x position number - 2. Work out: i the first four terms il the 10th term iii the 20th term.​

Answer 1

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The formula for finding any term in the sequence is Un (or Ur) = the 1st term + the term you are trying to find minus 1 (if you were finding the 5th term it would be 5 -1) x d (the common difference).