Answer
{0,2,6,7,8}
Work Step by Step
If A is a set, the complement of A is the set consisting of all the elements in the Universal set that are not in A.
So,
If the universal set is {0,1,2,3,4,5,6,7,8,9}
and the set A is {1,3,4,5,9},
then the complement of A is {0,2,6,7,8}.