which term of the ap 31,28 ,25,22 -.. is the first negative term​

Question

which term of the ap 31,28 ,25,22 …… is the first negative term​

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Maria 1 month 2021-10-27T03:08:03+00:00 2 Answers 0 views 0

Answers ( )

    0
    2021-10-27T03:09:30+00:00

    Answer:

    n=12

    Step-by-step explanation:

    a=31

    d=28-31=-3

    let an be the first -ve term

    a+(n-1)d<0

    31+(n-1)-3<0

    31-3n+3<0

    34-3n<0

    34<3n

    34/3<n

    11.3<n

    n>11.3

    so the -ve term is 12

    so the negative term is greater than

    so it is n=12

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    hope u got it

  1. Ava
    0
    2021-10-27T03:09:50+00:00

    Answer:

    a=31

    d=28-31=-3

    let an be the first -ve term

    a+(n-1)d<0

    31+(n-1)-3<0

    31-3n+3<0

    34-3n<0

    34<3n

    34/3<n

    11.3<n

    n>11.3

    so the -ve term is 12

    so the negative term is greater than

    so it is n=12

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