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14 December, 05:27

Find the 18th term of the sequence 5, 8, 11, 14, 17 ...

a. An 18th term does not exist

b. 53

c. 56

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Answers (1)
  1. 14 December, 05:54
    0
    Adds 3 each time

    first term is 5

    an=a1+d (n-1)

    d=common difference

    a1=first term

    an=5+3 (n-1)

    18th term

    a18=5+3 (18-1)

    a18=5+3 (17)

    a18=5+51

    a18=56

    C is answer
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