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D( x )
(2*x)^0 = 0
2*x = 0
(2*x)^0 = 0
(2*x)^0 = 0
1 = 0
(2*x)^0 = 0
1 = 0
x belongs to the empty set
2*x = 0
2*x = 0
2*x = 0 // : 2
x = 0
x in (-oo:0) U (0:+oo)
(X^-2)/((2*x)^0) = 0
X^-2 = 0
X^-2 = 0
x należy do R
x in (-oo:0) U (0:+oo)
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