2(x^2/x^2-1)-x^2-1=0

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Solution for 2(x^2/x^2-1)-x^2-1=0 equation: 


D( x )

x^2 = 0

x^2 = 0

x^2 = 0

1*x^2 = 0 // : 1

x^2 = 0

x = 0

x in (-oo:0) U (0:+oo)

2*((x^2)/(x^2)-1)-x^2-1 = 0

0*2-x^2-1 = 0

0*2-x^2-1 = 0

-x^2-1 = 0

-x^2-1 = 0

-1*x^2 = 1 // : -1

x^2 = -1

x belongs to the empty set

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