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An arithmetic sequence does not have a constant rate of increase or decrease between successive terms, so it cannot be called anything!The constant increase or decrease is called the common difference.
left to right positive,right to left negative rate
the advantages is it is nice long and cute the disadvantages is it is long boring and tiring..
An interval that remains the same throughout a sequence
She enjoys doing 'spot the difference' puzzles.There is a difference between happy and sad.What is the difference between these two cakes?