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Find the sum to n term …

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Find the sum to n term of the ap 5,2,-1,-4,-7•••

    • Posted by Deepank Khare 6 years, 3 months ago

    CBSE > Class 10 > Mathematics
    • 2 answers

    Yogita Ingle 6 years, 3 months ago

    AP = 5 , 2 , -1 , -4 .....

    Here , First term (A) = 5 and  Common Difference = 2-5 = -3

    An = A + (N-1) × D
    An = 5 + ( N -1) × -3
    An = 5 - 3N +3
    An = 8+3N

    0Thank You

    Deepank Khare 6 years, 3 months ago

    Give me my answer

    2Thank You

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