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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
1/x = 0.0276161663175861 // - 0.0276161663175861
1/x-0.0276161663175861 = 0
1*x^-1 = 0.0276161663175861 // : 1
x^-1 = 0.0276161663175861
-1 < 0
1/(x^1) = 0.0276161663175861 // * x^1
1 = 0.0276161663175861*x^1 // : 0.0276161663175861
36.21067416 = x^1
x = 36.21067416
x = 36.21067416
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