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If sn the sum of first n terms of an A.P...

If `s_n` the sum of first `n` terms of an `A.P,` is given by `s_n=5n^2+3n,` then find its `n^(th)` terms.

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If S_n , the sum of first n terms of an A.P., is given by S_n=5n^2+3n , then find its n^(t h) term.

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Knowledge Check

  • If the sum of first n terms of an A.P. is given by S_(n)=3n^(2)-4n, then its seventh term is:

    A
    119
    B
    73
    C
    41
    D
    35

  • If the sum of n terms of an AP is given by S_n=n(2n-9) , then 10th term is

    A
    25
    B
    34
    C
    29
    D
    39

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    If S_(n) the sum of first n terms of an AP is given by 2n^(2)+n, then find its nth term.

    If the sum of first n terms of an A.P. is given by S=3n^(2)+4n. Determine the A.P. and the n^(th) term.

    If the sum of the first n terms of an AP is given by S_n=3n^2-n then find its nth terms, first term and common difference

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