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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
2/x-2 > 10 // - 10
2/x-10-2 > 0
2*x^-1 > 12
2*x^-1 > 12 // : 2
x^-1 > 12/2
x^-1 > 6
1/(x^1) > 6
x <> 0
1/(x^1) > 6 // * x^2
(x^2)/(x^1) > 6*x^2
x^1 > 6*x^2
x-6*x^2 > 0
x^1*(1-6*x) > 0
x < 0
-(abs(x))^1*(6*(abs(x))^1+1) > 0 // : -(abs(x))^1
6*(abs(x))^1+1 < 0
6*(abs(x))^1 < -1 // : 6
(abs(x))^1 < -1/6
(abs(x))^1 < -1/6 // ^ 1/1
abs(x) < (-1/6)^(1/1)
abs(x) < -1/6
x belongs to the empty set
x < 0
x > 0
x^1*(1-(6*x^1)) > 0 // : x^1
1-(6*x^1) > 0
1 > 6*x^1 // : 6
1/6 > x^1 // ^ 1/1
(1/6)^(1/1) > x
x in (0:1/6)
x > 0
x in (0:1/6)
x in (0:1/6)
(0:1/6)
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