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D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
(x^1)/2+(x^-1)/2 = 63*x^-1 // - 63*x^-1
(x^1)/2+(x^-1)/2-(63*x^-1) = 0
x/2+(x^-1)/2-63*x^-1 = 0
1/2*x^1-125/2*x^-1 = 0
(1/2*x^2-125/2*x^0)/(x^1) = 0 // * x^2
x^1*(1/2*x^2-125/2*x^0) = 0
x^1
(1/2)*x^2-125/2 = 0
(1/2)*x^2-125/2 = 0
DELTA = 0^2-(4*(1/2)*(-125/2))
DELTA = 125
DELTA > 0
x = (125^(1/2)+0)/(2*(1/2)) or x = (0-125^(1/2))/(2*(1/2))
x = 5*5^(1/2) or x = -5*5^(1/2)
x in { -5*5^(1/2), 5*5^(1/2)}
x in { -5*5^(1/2), 5*5^(1/2) }
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