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25 October, 15:34

Find the first six terms of the sequence.

a1 = 7, an = an-1 + 6

Choices:

A. 13, 19, 25, 31, 37, 43

B. 0, 6, 12, 18, 24, 30

C. 7, 6, 12, 18, 24, 30

D. 7, 13, 19, 25, 31, 37

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Answers (1)
  1. 25 October, 15:56
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    The correct answer to this question is this one: "D. 7, 13, 19, 25, 31, 37."

    You can find a1+1 because you know the value of a1.

    Now when you get to know the value of a1+1, you can get the value of a1+1+1. Repeat the cycle.

    Because a2=a1+6, a2=7+6.

    From that sequence, we can say that

    a1 = 7

    a2 = 13

    a3 = 19

    a4 = 25

    a5 = 31

    a6 = 37
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