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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
41/x = 0.95 // - 0.95
41/x-0.95 = 0
41*x^-1 = 0.95 // : 41
x^-1 = 0.02317073
-1 < 0
1/(x^1) = 0.02317073 // * x^1
1 = 0.02317073*x^1 // : 0.02317073
43.15789792 = x^1
x = 43.15789792
x = 43.15789792
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