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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
37/x = 2.27 // - 2.27
37/x-2.27 = 0
37*x^-1 = 2.27 // : 37
x^-1 = 0.06135135
-1 < 0
1/(x^1) = 0.06135135 // * x^1
1 = 0.06135135*x^1 // : 0.06135135
16.29955983 = x^1
x = 16.29955983
x = 16.29955983
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