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22 March, 21:47

Here are the first five terms of an arithmetic sequence. 2 6 10 14 18 Write down an expression, in terms of n, for the nth term of this sequence.

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Answers (1)
  1. 22 March, 22:07
    0
    Step-by-step explanation:

    Use the formula

    a

    n

    =

    a

    1

    +

    d

    (

    n

    -

    1

    )

    a

    n

    =

    a

    1

    +

    d

    (

    n

    -

    1

    )

    to identify the arithmetic sequence.

    a

    n

    =

    4

    n

    -

    2
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