If |A| = 2 and A = [ (2x, 6) , (5x, 1)...

If |A| = 2 and `A = [ (2x, 6) , (5x, 1)]` then find the value of x

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The correct Answer is:

`-a^(2)(a_(1)-a_(2))(a_(2)-a_(3))(a_(3)-a_(1))`

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