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D( k )
k = 0
k = 0
k = 0
k in (-oo:0) U (0:+oo)
24/k-11 = 6/7 // - 6/7
24/k-(6/7)-11 = 0
24/k-6/7-11 = 0
24*k^-1 = 83/7 // : 24
k^-1 = 83/168
-1 < 0
1/(k^1) = 83/168 // * k^1
1 = 83/168*k^1 // : 83/168
168/83 = k^1
k = 168/83
k = 168/83
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