3n/6-6/n-2

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Solution for 3n/6-6/n-2 equation: 


D( n )

n = 0

n = 0

n = 0

n in (-oo:0) U (0:+oo)

(3*n)/6-(6/n)-2 = 0

(3*n)/6-6*n^-1-2 = 0

1/2*n^1-6*n^-1-2*n^0 = 0

(1/2*n^2-2*n^1-6*n^0)/(n^1) = 0 // * n^2

n^1*(1/2*n^2-2*n^1-6*n^0) = 0

n^1

(1/2)*n^2-2*n-6 = 0

(1/2)*n^2-2*n-6 = 0

DELTA = (-2)^2-(-6*4*(1/2))

DELTA = 16

DELTA > 0

n = (16^(1/2)+2)/(2*(1/2)) or n = (2-16^(1/2))/(2*(1/2))

n = 6 or n = -2

n in { -2, 6} 

n in { -2, 6 }

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