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D( m )
m = 0
m = 0
m = 0
m in (-oo:0) U (0:+oo)
(7/3)*m = 11/2-(5/m) // - 11/2-(5/m)
(7/3)*m+5/m-(11/2) = 0
(7/3)*m+5/m-11/2 = 0
7/3*m^1+5*m^-1-11/2*m^0 = 0
(7/3*m^2-11/2*m^1+5*m^0)/(m^1) = 0 // * m^2
m^1*(7/3*m^2-11/2*m^1+5*m^0) = 0
m^1
(7/3)*m^2+(-11/2)*m+5 = 0
(7/3)*m^2+(-11/2)*m+5 = 0
DELTA = (-11/2)^2-(4*5*(7/3))
DELTA = -197/12
DELTA < 0
m in { }
m belongs to the empty set
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