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D( x )
x^1 = 0
x^1 = 0
x^1 = 0
x = 0
x in (-oo:0) U (0:+oo)
((x^3)/2)*((x^1)/2-((1/(x^1))/2)) = 0
((x^3)/2)*(x/2+(-1/2)*x^-1) = 0
1/2*x^3*(1/2*x-1/2*x^-1) = 0
1/2*x-1/2*x^-1 = 0
1/2*x^-1*(x^2-1) = 0
1*x^2 = 1 // : 1
x^2 = 1
x^2 = 1 // ^ 1/2
abs(x) = 1
x = 1 or x = -1
1/2*x^-1*(x-1)*(x+1) = 0
1/2*1/2*x^-1*x^3*(x-1)*(x+1) = 0
( 1/2*x^-1 )
1/2*x^-1 = 0 // : 1/2
x^-1 = 0
x naleu017Cy do O
( 1/2*x^3 )
1/2*x^3 = 0 // : 1/2
x^3 = 0
x = 0
( x+1 )
x+1 = 0 // - 1
x = -1
( x-1 )
x-1 = 0 // + 1
x = 1
x in { 0}
x in { -1, 1 }
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