Mathematics

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The 10th term of an arithmetic sequence 17 and the16th is 44,find the first three terms in the sequence

  • Mathematics -

    a+9d = 17
    a+15d = 44

    subtract them
    6d = 27
    d = 4.5

    then a = 17-9(4.5) = -23.5

    sequence starts as
    -23.5 , -19 , -14.5 ...

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