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D( x )
1-(1/(2*x)) = 0
3*x = 0
6*x^2 = 0
2*x = 0
1-(1/(2*x)) = 0
1-(1/(2*x)) = 0
(-1/2)*x^-1+1 = 0
-1/2*x^-1 = -1 // : -1/2
x^-1 = 2
-1 < 0
1/(x^1) = 2 // * x^1
1 = 2*x^1 // : 2
1/2 = x^1
x = 1/2
3*x = 0
3*x = 0
3*x = 0 // : 3
x = 0
6*x^2 = 0
6*x^2 = 0
6*x^2 = 0 // : 6
x^2 = 0
x = 0
2*x = 0
2*x = 0
2*x = 0 // : 2
x = 0
x in (-oo:0) U (0:1/2) U (1/2:+oo)
(1/(3*x)-(1/(6*x^2)))/(1-(1/(2*x))) = 0
(1/(3*x)+(-1/6)*x^-2)/((-1/2)*x^-1+1) = 0
(1/3*x^-1-1/6*x^-2)/(1-1/2*x^-1) = 0
1/3*x^-1-1/6*x^-2 = 0
1/3*x^-1*(1-1/2*x^-1) = 0
-1/2*x^-1 = -1 // : -1/2
x^-1 = 2
-1 < 0
1/(x^1) = 2 // * x^1
1 = 2*x^1 // : 2
1/2 = x^1
x = 1/2
1/3*x^-1*(x-1/2) = 0
(1/3*x^-1*(x-1/2))/(1-1/2*x^-1) = 0
( 1/3*x^-1 )
1/3*x^-1 = 0 // : 1/3
x^-1 = 0
x należy do O
( x-1/2 )
x-1/2 = 0 // + 1/2
x = 1/2
x in { 1/2}
x belongs to the empty set
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