9-(200000/x^2)=0

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Solution for 9-(200000/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)

9-(200000/(x^2)) = 0

9-200000*x^-2 = 0

-200000*x^-2 = -9 // : -200000

x^-2 = 9/200000

-2 < 0

1/(x^2) = 9/200000 // * x^2

1 = 9/200000*x^2 // : 9/200000

200000/9 = x^2

x^2 = 200000/9 // ^ 1/2

abs(x) = (200000/9)^(1/2)

x = (200000/9)^(1/2) or x = -(200000/9)^(1/2)

x in { (200000/9)^(1/2), -(200000/9)^(1/2) }

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