Write down in terms of n, an expression for the nth term of the following sequences: a) 4 1 -2 -5 -8 b) -7 -12 -17 -22 -27

Question

Write down in terms of n, an expression for the nth term
of the following sequences:
a) 4 1 -2 -5 -8
b) -7 -12 -17 -22 -27

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Maris 5 months 2021-08-30T14:00:04+00:00 1 Answers 6 views 0

Answers ( )

    0
    2021-08-30T14:01:18+00:00

    A) Tn= a+(n-1)d = 4 + (n-1)(-3) = 4 -3n + 3 = 7-3n

    B) Tn = a+(n-1)d = -7 + (n-1)(-5) = -7 -5n + 5 = -2 -5n

    [a is the first term, d is the common difference]

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