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D( a )
a = 0
a = 0
a = 0
a in (-oo:0) U (0:+oo)
(3/2)*a = 3/a+2 // - 3/a+2
(3/2)*a-(3/a)-2 = 0
(3/2)*a-3*a^-1-2 = 0
3/2*a^1-3*a^-1-2*a^0 = 0
(3/2*a^2-2*a^1-3*a^0)/(a^1) = 0 // * a^2
a^1*(3/2*a^2-2*a^1-3*a^0) = 0
a^1
(3/2)*a^2-2*a-3 = 0
(3/2)*a^2-2*a-3 = 0
DELTA = (-2)^2-(-3*4*(3/2))
DELTA = 22
DELTA > 0
a = (22^(1/2)+2)/(2*(3/2)) or a = (2-22^(1/2))/(2*(3/2))
a = (22^(1/2)+2)/3 or a = (2-22^(1/2))/3
a in { (2-22^(1/2))/3, (22^(1/2)+2)/3}
a in { (2-22^(1/2))/3, (22^(1/2)+2)/3 }
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