try to notice the negative sign for Sqrt 6 in Y, which should be multiplied by the bigger number in the inequality of X (2/3).
Sorry, if this sounds very basic. Any specific reason for that ? Can't we write:
Range = (1/2*-2.45 < xy < 2.45*2/3)
I just thought you are trying to find out the maximum possible values for the product xy.
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