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D( m )
m = 0
m = 0
m = 0
m in (-oo:0) U (0:+oo)
2/m = (5/3)*m-1 // - (5/3)*m-1
2/m-((5/3)*m)+1 = 0
(-5/3)*m+2/m+1 = 0
2*m^-1-5/3*m^1+1*m^0 = 0
(1*m^1-5/3*m^2+2*m^0)/(m^1) = 0 // * m^2
m^1*(1*m^1-5/3*m^2+2*m^0) = 0
m^1
(-5/3)*m^2+m+2 = 0
(-5/3)*m^2+m+2 = 0
DELTA = 1^2-(2*4*(-5/3))
DELTA = 43/3
DELTA > 0
m = ((43/3)^(1/2)-1)/(2*(-5/3)) or m = (-(43/3)^(1/2)-1)/(2*(-5/3))
m = -3/10*((43/3)^(1/2)-1) or m = 3/10*((43/3)^(1/2)+1)
m in { -3/10*((43/3)^(1/2)-1), 3/10*((43/3)^(1/2)+1)}
m in { -3/10*((43/3)^(1/2)-1), 3/10*((43/3)^(1/2)+1) }
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