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D( m )
m = 0
m = 0
m = 0
m in (-oo:0) U (0:+oo)
m/2-(1/m) = 6*m+5/12 // - 6*m+5/12
m/2-(6*m)-(1/m)-(5/12) = 0
m/2-6*m-m^-1-5/12 = 0
-11/2*m^1-1*m^-1-5/12*m^0 = 0
(-11/2*m^2-5/12*m^1-1*m^0)/(m^1) = 0 // * m^2
m^1*(-11/2*m^2-5/12*m^1-1*m^0) = 0
m^1
(-11/2)*m^2+(-5/12)*m-1 = 0
(-11/2)*m^2+(-5/12)*m-1 = 0
DELTA = (-5/12)^2-(-1*4*(-11/2))
DELTA = -3143/144
DELTA < 0
m in { }
m belongs to the empty set
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