Q. Which word best describes this formula for the sequence an?an=2×1(n+3)+8Choices:(A) explicit(B) recursive
Examine the Formula: Look at the formula: an=2×1(n+3)+8. Does it use previous terms of the sequence to find the nth term?
Determine Recursiveness: Since the formula doesn't include terms like a(n−1) or a(n−2), it's not recursive. It directly calculates an based on the value of n.
Identify Explicit Formula: The formula is an explicit formula because it allows us to find the nth term without knowing any other terms in the sequence.
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