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D( X )
X = 0
X = 0
X = 0
X in (-oo:0) U (0:+oo)
(1/X-(3*X))^12 = 0
(1/X-3*X)^12 = 0
(X^-1-3*X)^12 = 0
X^-1-3*X = 0
X^-1*(1-3*X^2) = 0
-3*X^2 = -1 // : -3
X^2 = 1/3
X^2 = 1/3 // ^ 1/2
abs(X) = (1/3)^(1/2)
X = (1/3)^(1/2) or X = -(1/3)^(1/2)
X^-1*(X-(1/3)^(1/2))*(X+(1/3)^(1/2)) = 0
(X^-1)^12*(X-(1/3)^(1/2))^12*(X+(1/3)^(1/2))^12 = 0
( X+(1/3)^(1/2) )
X+(1/3)^(1/2) = 0 // - (1/3)^(1/2)
X = -(1/3)^(1/2)
( X-(1/3)^(1/2) )
X-(1/3)^(1/2) = 0 // + (1/3)^(1/2)
X = (1/3)^(1/2)
( X^-1 )
1*X^-1 = 0 // : 1
X^-1 = 0
X należy do O
X in { -(1/3)^(1/2), -(1/3)^(1/2), -(1/3)^(1/2), -(1/3)^(1/2), -(1/3)^(1/2), -(1/3)^(1/2), -(1/3)^(1/2), -(1/3)^(1/2), -(1/3)^(1/2), -(1/3)^(1/2), -(1/3)^(1/2), -(1/3)^(1/2), (1/3)^(1/2), (1/3)^(1/2), (1/3)^(1/2), (1/3)^(1/2), (1/3)^(1/2), (1/3)^(1/2), (1/3)^(1/2), (1/3)^(1/2), (1/3)^(1/2), (1/3)^(1/2), (1/3)^(1/2), (1/3)^(1/2) }
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