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Answer 1

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BRAINLIEST BRAINLIEST BRAINLIEST

Answer 2

Answer:

Formally, a sequence can be defined as a function whose domain is either the set of the natural numbers (for infinite sequences), or the set of the first n natural numbers (for a sequence of finite length n). For example, (M, A, R, Y) is a sequence of letters with the letter 'M' first and 'Y' last.

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