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D( m )
m = 0
m = 0
m = 0
m in (-oo:0) U (0:+oo)
(2/3)*(m-2) = 3/m+11/12 // - 3/m+11/12
(2/3)*(m-2)-(3/m)-(11/12) = 0
(2/3)*(m-2)-3*m^-1-11/12 = 0
2/3*(m-2)-3/m-11/12 = 0
(2/3*12*m*(m-2))/(12*m)+(-3*12)/(12*m)+(-11*m)/(12*m) = 0
2/3*12*m*(m-2)-11*m-3*12 = 0
8*m^2-16*m-11*m-36 = 0
8*m^2-27*m-36 = 0
8*m^2-27*m-36 = 0
8*m^2-27*m-36 = 0
DELTA = (-27)^2-(-36*4*8)
DELTA = 1881
DELTA > 0
m = (1881^(1/2)+27)/(2*8) or m = (27-1881^(1/2))/(2*8)
m = (3*209^(1/2)+27)/16 or m = (27-3*209^(1/2))/16
(m-((27-3*209^(1/2))/16))*(m-((3*209^(1/2)+27)/16)) = 0
((m-((27-3*209^(1/2))/16))*(m-((3*209^(1/2)+27)/16)))/(12*m) = 0
((m-((27-3*209^(1/2))/16))*(m-((3*209^(1/2)+27)/16)))/(12*m) = 0 // * 12*m
(m-((27-3*209^(1/2))/16))*(m-((3*209^(1/2)+27)/16)) = 0
( m-((27-3*209^(1/2))/16) )
m-((27-3*209^(1/2))/16) = 0 // + (27-3*209^(1/2))/16
m = (27-3*209^(1/2))/16
( m-((3*209^(1/2)+27)/16) )
m-((3*209^(1/2)+27)/16) = 0 // + (3*209^(1/2)+27)/16
m = (3*209^(1/2)+27)/16
m in { (27-3*209^(1/2))/16, (3*209^(1/2)+27)/16 }
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