Q. Which word best describes this formula for the sequence an?an=6an−1+2an−3+14n+3Choices:(A) explicit(B) recursive
Examine the Formula: Look at the formula: an=6an−1+2an−3+14n+3. Does it use previous terms of the sequence? Yes, it uses an−1 and an−3, which are earlier terms in the sequence.
Dependency on Previous Terms: Since the formula for an depends on previous terms of the sequence, it's not explicit.An explicit formula would directly calculate an from n without needing previous terms.
Recursive Formula: The formula is recursive because it defines each term using previous terms in the sequence.
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