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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
1/x = 34.96 // - 34.96
1/x-34.96 = 0
1*x^-1 = 34.96 // : 1
x^-1 = 34.96
-1 < 0
1/(x^1) = 34.96 // * x^1
1 = 34.96*x^1 // : 34.96
0.02860412 = x^1
x = 0.02860412
x = 0.02860412
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