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D( x )
(1/(e^2))*x <= 0
e^2 = 0
(1/(e^2))*x <= 0
(1/(e^2))*x <= 0
(1/(e^2))*x+0 <= 0 // - 0
(1/(e^2))*x <= 0 // : 1/(e^2)
x <= 0/(1/(e^2))
x <= 0
e^2 = 0
e^2 = 0
e^2 = 0
x belongs to the empty set
x in (0:+oo)
ln((1/(e^2))*x) = 0
ln((1/(e^2))*x) = ln(e^0)
(1/(e^2))*x = e^0
(1/(e^2))*x-e^0 = 0
(1/(e^2))*x-1 = 0 // + 1
(1/(e^2))*x = 1 // : 1/(e^2)
x = 1/(1/(e^2))
x = e^2
x = e^2
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