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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
1.041*(3/x) = 1 // - 1
1.041*(3/x)-1 = 0
3.123*x^-1 = 1 // : 3.123
x^-1 = 0.32020493
-1 < 0
1/(x^1) = 0.32020493 // * x^1
1 = 0.32020493*x^1 // : 0.32020493
3.12300001 = x^1
x = 3.12300001
x = 3.12300001
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