11=121/x^2

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Solution for 11=121/x^2 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)

11 = 121/(x^2) // - 121/(x^2)

11-(121/(x^2)) = 0

11-121*x^-2 = 0

-121*x^-2 = -11 // : -121

x^-2 = 1/11

-2 < 0

1/(x^2) = 1/11 // * x^2

1 = 1/11*x^2 // : 1/11

11 = x^2

x^2 = 11 // ^ 1/2

abs(x) = 11^(1/2)

x = 11^(1/2) or x = -11^(1/2)

x in { 11^(1/2), -11^(1/2) }

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