1-19/x^2=0

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Solution for 1-19/x^2=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)

1-(19/(x^2)) = 0

1-19*x^-2 = 0

-19*x^-2 = -1 // : -19

x^-2 = 1/19

-2 < 0

1/(x^2) = 1/19 // * x^2

1 = 1/19*x^2 // : 1/19

19 = x^2

x^2 = 19 // ^ 1/2

abs(x) = 19^(1/2)

x = 19^(1/2) or x = -19^(1/2)

x in { 19^(1/2), -19^(1/2) }

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