Ian Chen 發問時間: 科學數學 · 10 年前

數學題~急到跳腳了!

find the smallest integer a>2 such that

2/a, 3/a+1, 4/a+2, 5/a+3, 6/a+4

please steps by steps

已更新項目:

could you give me more detail? because i just learning it.

1 個解答

評分
  • 10 年前
    最佳解答

    2|a,3|(a+1),4|(a+2),5|(a+3),6|(a+4)

    a=2b=3c-1=4d-2=5e-3=6f-4

    a-2=2(b+2)=3(c-1)=4(d-1)=5(e-1)=6(f-1)

    a-2=[2,3,4,5,6] * k = 60k

    a=60 k +2

    ex:

    62,122,182,242.....

    2011-04-06 22:44:03 補充:

    TO 螞蟻雄兵大大,

    您真是太客氣了!

    2011-04-07 01:33:03 補充:

    2(b+2) 改成 2(b-1)

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