To find A'B'. In set theory, this notation typically implies the intersection of the complements of A and B, i.e., A' B'.

The question asks to find A'B'. In set theory, this notation typically implies the intersection of the complements of A and B, i.e., A' $\cap$ B'.

Step 1: List the elements of the universal set $\mu$, set A, and set B.
Given:

$$\mu = \{X \in \text{N}: 1 \le X \le 10\} = \{1, 2, 3, 4, 5, 6, 7, 8, 9, 10\}$$ $$$$