यदि |(4,1),(2,1)|^(2)=|(3,2),(1,x)|-|(x,...

यदि `|(4,1),(2,1)|^(2)=|(3,2),(1,x)|-|(x,3),(-2,1)|` हो, तो x का मान है-

`6`

`7`

`8`

`11`

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