Given the two sets:
![\begin{gathered} A=\mleft\lbrace a,c\mright\rbrace \\ B=\mleft\lbrace d,g,w\mright\rbrace \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/4049fkx1bwbvqhfg233tqt7itavbg2xxf3.png)
we can write the product set of A and B in the following form:
![AxB=\mleft\lbrace(a,d\mright),(a,g),(a,w),(c,d),(c,g),(c,w)\}](https://img.qammunity.org/2023/formulas/mathematics/college/qhtub76vejdtb8ix59qxi8mv7m9pkqz7t6.png)
next, we have that the number of elements in A is 2 and the number of elements in B is 3, then, we have:
![n(AxB)=2\cdot3=6](https://img.qammunity.org/2023/formulas/mathematics/college/hkoc3hmzci990ixuexdig55x56li4w5cis.png)
finally, the equation that involves the numerals of the previous parts is:
![n(AxB)=n(A)\cdot n(B)](https://img.qammunity.org/2023/formulas/mathematics/college/ok4mymdvd5wrdr1vaydcdhsft2882usz9d.png)
where n(A) and n(B) represents the number of elements in A and B respectively.