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express [3/7]+[4/8]+[5/9]+[6/10] in sigma notion.

  • maths -

    sigma from x = 3 to x = 6 of [ x/(x+4) ]

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    how did you find that equation ? it there a general formula for that ?

  • maths -

    Nope, just look at it
    on top
    3,4,5, 6
    =2, 3+1 etc

    on bottom
    7,8,9,10
    = 7, 7+1 etc

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