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D( x )
x^5 = 0
(2^4)/(x^5) = 0
x^5 = 0
x^5 = 0
1*x^5 = 0 // : 1
x^5 = 0
x = 0
(2^4)/(x^5) = 0
(2^4)/(x^5) = 0
16*x^-5 = 0 // : 16
x^-5 = 0
x należy do O
x in (-oo:0) U (0:+oo)
((2^4)/(x^5))^-1 = 0
1/16*x^5 = 0 // : 1/16
x^5 = 0
x = 0
x in { 0}
x belongs to the empty set
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