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D( n )
n = 0
n = 0
n = 0
n in (-oo:0) U (0:+oo)
360/n = n // - n
360/n-n = 0
360*n^-1-1*n^1 = 0
(360*n^0-1*n^2)/(n^1) = 0 // * n^2
n^1*(360*n^0-1*n^2) = 0
n^1
360-n^2 = 0
360-n^2 = 0
DELTA = 0^2-(-1*4*360)
DELTA = 1440
DELTA > 0
n = (1440^(1/2)+0)/(-1*2) or n = (0-1440^(1/2))/(-1*2)
n = -6*10^(1/2) or n = 6*10^(1/2)
n in { -6*10^(1/2), 6*10^(1/2)}
n in { -6*10^(1/2), 6*10^(1/2) }
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