Suppose that `A` and `B` are sets, defined as follows. Find the intersection and union of `A` and `B`. Enter the elements of the sets in increasing order, separated by commas. If a set is the empty set, just enter DNE inside the braces given.

`A= \{1,9}` and `B= \{1,2,3,5,10}`

`A\cap B=\{` `}`

`A\cup B=\{` `}`

Get help: