atorr1624 atorr1624
  • 01-02-2018
  • Mathematics
contestada

how did they get this

how did they get this class=

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TheAakash
TheAakash TheAakash
  • 01-02-2018
Somewhere in the text, it must say that x = 2 and y = -1 or else, the values just seem made up out of thin air. 
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AL2006
AL2006 AL2006
  • 01-02-2018
It's only true if  x=2  and  y= -1 .
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