洛杉矶机场 奥莱班车:有一道"希望杯"的题目,有问题!

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x2x3x4x5x6=1,x1x3x4x5x6=2,x1x2x4x5x6=3,x1x2x3x5x6=4,x1x2x3x4x6=6,x1x2x3x4x5=9
请问:x1x2x3x4x5x6=?
(注:其中x1等"1"是下标)
答案是:6
但是,却算不出
有谁能给解题过程?
附:把它们相乘,即x5(上标)为1296,并非是x4(上标)是1296!
说一下讨论的数学题,题目错误!应该是
x1,x2,x3,x4,x5,x6都是正数,且x2x3x4x5x6/x1=1,x1x3x4x5x6/x2=2,x1x2x4x5x6/x3=3,x1x2x3x5x6/x4=4,x1x2x3x4x6/x5=6,x1x2x3x4x5/x6=9,则x1x2x3x4x5x6=? 请给出详细过程!~谢谢!~~~

(x2x3x4x5x6/x1)*(x1x3x4x5x6/x2)*(x1x2x4x5x6/x3)*(x1x2x3x5x6/x4=4)*(x1x2x3x4x6/x5)*(x1x2x3x4x5/x6) =(x1x2x3x4x5x6)的4次方=1*2*3*4*6*9=6的4次方
所以x1x2x3x4x5x6=6

确定是6吗

乘起来,开方

x2x3x4x5x6/x1*x1x3x4x5x6/x2*x1x2x4x5x6/x3*x1x2x3x5x6/x4*x1x2x3x4x6/x5*1x2x3x4x5/x6=(x1x2x3x4x5x6)^4(上标)=1296
故x1x2x3x4x5x6=6