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Jon
Jon asked in Science & MathematicsMathematics · 2 weeks ago

How do I find the first four terms of the sequence using the recursion formula?

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3 Answers

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  • Puzzling
    Lv 7
    2 weeks ago

    All you have to be able to do is read the "recipe".

    The first line says the first term (a[1]) is 7.

    a[1] = 7

    The next line says, to find another term (a[n]), you take the prior term (a[n-1]) and add 5. That's obviously the case for terms 2 and higher.

    a[2] = 7+5 = 12

    a[3] = 12+5 = 17

    a[4] = 17+5 = 22

    Answer:

    The first 4 terms are 7, 12, 17, 22

  • ?
    Lv 7
    2 weeks ago

    The first four terms of the sequence

    a1 = 7

    an = a(n - 1) + 5

    n ≥ 2

    7, 12, 17, 22

  • ?
    Lv 7
    2 weeks ago

    a1 = 7

    a2 = a1+5 = 12

    a3 = a2+5 = 17

    a4 = a3+5 = 22

    a5 = a4+5 = 27

    etc.

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