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MATH!!!! SEQUENCES!!!

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Find out a formula for the Nth term of each of the following sequences.

(i)4 7 10 13 16
(ii)1 3 5 7 9
(iii)20 17 14 11 8
(iv)1 4 9 16 25
(v)2 8 18 32 50

  • MATH!!!! SEQUENCES!!! - ,

    (i)4 7 10 13 16 N = 4 + (n-2)d
    (ii)1 3 5 7 9 N = 2 + (n-1)d
    (iii)20 17 14 11 8 N = 20 - (n-1)d
    (iv)1 4 9 16 25 N = n^2
    (v)2 8 18 32 50 N = 2n^2

  • MATH!!!! SEQUENCES!!! - ,

    i) term(n) = 3n +1
    ii) term(n) = 2n - 1
    iii) term(n) = -3n + 23
    iv) term(n) = n^2
    v) term(n) = 2(n^2)

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