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Which term of the AP: 121, 117, 113,……… ...

Which term of the AP: 121, 117, 113,……… is the first negative term?
[Hint:Find n for `a_(n) lt 0`]

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Which term of the AP: 121,117,113……. is its first negative term?

Which term of the A.P : 121, 117, 113, ………………. Is the first negative term ?

Knowledge Check

  • The first n^(th) term of a AP is given by

    A
    `a_(n) = a+ nd`
    B
    `a_(n) = a+ (n-1) d`
    C
    `a_(n) = a- (n-1) d`
    D
    `a_(n) = 2a + (n-1) d`

  • If the sum of the first 2n terms of the A.P. 2,5,8, "……….." is equal to the sum of the first n terms of the A.P. 57,59,61, "…………" then n equals :

    A
    10
    B
    12
    C
    11
    D
    13

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