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D( n )
n = 0
n = 0
n = 0
n in (-oo:0) U (0:+oo)
6/n > 24 // - 24
6/n-24 > 0
6*n^-1 > 24
6*n^-1 > 24 // : 6
n^-1 > 24/6
n^-1 > 4
1/(n^1) > 4
n <> 0
1/(n^1) > 4 // * n^2
(n^2)/(n^1) > 4*n^2
n^1 > 4*n^2
n-4*n^2 > 0
n^1*(1-4*n) > 0
n < 0
-(abs(n))^1*(4*(abs(n))^1+1) > 0 // : -(abs(n))^1
4*(abs(n))^1+1 < 0
4*(abs(n))^1 < -1 // : 4
(abs(n))^1 < -1/4
(abs(n))^1 < -1/4 // ^ 1/1
abs(n) < (-1/4)^(1/1)
abs(n) < -1/4
n belongs to the empty set
n < 0
n > 0
n^1*(1-(4*n^1)) > 0 // : n^1
1-(4*n^1) > 0
1 > 4*n^1 // : 4
1/4 > n^1 // ^ 1/1
(1/4)^(1/1) > n
n in (0:1/4)
n > 0
n in (0:1/4)
n in (0:1/4)
(0:1/4)
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