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D( n )
n = 0
n = 0
n = 0
n in (-oo:0) U (0:+oo)
322.2/6 = 2/n // - 2/n
322.2/6-(2/n) = 0
322.2/6-2*n^-1 = 0
-2*n^-1 = -53.7 // : -2
n^-1 = 26.85
-1 < 0
1/(n^1) = 26.85 // * n^1
1 = 26.85*n^1 // : 26.85
0.03724395 = n^1
n = 0.03724395
n = 0.03724395
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