9 Find the nth term of – 15,- 18,-21-.​

Question

9

Find the nth term
of – 15,- 18,-21…..​

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Eden 2 weeks 2021-09-11T04:51:53+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-09-11T04:53:49+00:00

    Answer:

    an=a+(n-1)d

    First term(a)=-15

    Common difference=a2-a1=-18-(-15)=-18+15=-3

    an=-15+(n-1)(-3)

    =-15-3n+3

    =-12-3n

    -3n=12

    n=-4

    Step-by-step explanation:

    so the nth term is -4

    I hope this answer may help you

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