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D( n )
n = 0
n = 0
n = 0
n in (-oo:0) U (0:+oo)
2*n^(-(2/3))*(n^(8/3)-(3*n^(5/3))) = 0
2*n^(-2/3)*(n^(8/3)-3*n^(5/3)) = 0
n^(8/3)-3*n^(5/3) = 0
n^(5/3)*(n-3) = 0
n-3 = 0 // + 3
n = 3
n^(5/3)*(n-3) = 0
2*n^(-2/3)*n^(5/3)*(n-3) = 0
( 2*n^(-2/3) )
2*n^(-2/3) = 0 // : 2
n^(-2/3) = 0
n należy do O
( n-3 )
n-3 = 0 // + 3
n = 3
( n^(5/3) )
1*n^(5/3) = 0 // : 1
n^(5/3) = 0
n = 0
n in { 0}
n = 3
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