Y=(2/x)^2

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Solution for Y=(2/x)^2 equation: 


D( x )

x = 0

x = 0

x = 0

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

Y = (2/x)^2 // - (2/x)^2

Y-(2/x)^2 = 0

-4*x^-2 = -Y // : -4

x^-2 = Y/4

-2 < 0

1/(x^2) = Y/4 // * x^2

1 = (Y/4)*x^2 // : Y/4

4*Y^-1 = x^2

x^2 = 4*Y^-1 // ^ 1/2

abs(x) = 2*Y^(-1/2)

x = 2*Y^(-1/2) or x = -(2*Y^(-1/2))

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

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