Find two numbers x and y such that xy, x/y, x+y are equal.

 

If xy =    ,   = x+y

 xy² = x  x= xy+y²

y² =1   x-xy = y²

 y = +1 , -1   x(1-y) = y²

  x = 

if y =1 ,  x =  = 0

if y = -1 , x =   = 

also xy = x+y

  xy-x = y

  x(y-1) = y

  x = 

  if y= -1 ,  x =  = ½

if y = 1 , x = = 1/0 = undefined

hence the value of x and y are ½ , -1

  • -6
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