If the last term is 232 d=4,a=4 find the values of n and also S7​

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If the last term is 232 d=4,a=4 find the values of n and also S7​

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Iris 4 months 2022-01-06T18:32:40+00:00 1 Answer 0 views 0

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    2022-01-06T18:34:30+00:00

    Step-by-step explanation:

    tn=a+(n-1)d

    232=4+(n-1)4

    232=4+4n-4

    232=4n

    n=58

    Sn=n/2{2a+(n-1)d

    S7=7/2{8+24}

    =7/2×32

    =7×16

    =112

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