Answer
Step-by-step explanation:
We already have the first three terms and need the next three terms.
a(n) = 9 + a(n-1). In words: the nth term of this sequence is 9 plus the previous term.
Thus, a(2) = 9 + a(1), or a(2) = 9 + (-1},2) = -3.
a(3) = 9 - 3 = 6
a(4) = 9 + 6 = 12
a(5) = 9 + 12 = 21
a(6) = 9 + 21 = 30
According to your definition of a(n), the next three terms are {12, 21, 30}. Note how each new term is equal to the previous term, plus 9.
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