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D( m )
m = 0
m = 0
m = 0
m in (-oo:0) U (0:+oo)
(1/2)*m^2 = 1/m-(1/2) // - 1/m-(1/2)
(1/2)*m^2-(1/m)+1/2 = 0
(1/2)*m^2-m^-1+1/2 = 0
1/2*m^2-1*m^-1+1/2*m^0 = 0
(1/2*m^3+1/2*m^1-1*m^0)/(m^1) = 0 // * m^2
m^1*(1/2*m^3+1/2*m^1-1*m^0) = 0
m^1
(1/2)*m^3+(1/2)*m-1 = 0
(1/2)*m^3+(1/2)*m-1 = 0 // * 0
{ 1, -1, 2, -2 }
1
m = 1
m^3+m-2 = 0
1
m-1
m^2+m+2
m^3+m-2
m-1
m^2-m^3
m^2+m-2
m-m^2
2*m-2
2-2*m
0
m^2+m+2 = 0
DELTA = 1^2-(1*2*4)
DELTA = -7
DELTA < 0
m in { 1}
m = 1
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