If n(A) = 3 and n(B) = 4, Find n(A × A × B)
Question
If
\[ n(A)=3,\quad n(B)=4, \]
then write
\[ n(A\times A\times B) \]
Solution
\[ n(A\times A\times B)=n(A)\times n(A)\times n(B) \]
\[ =3\times3\times4 \]
\[ =36 \]
Hence,
\[ \boxed{36} \]
If
\[ n(A)=3,\quad n(B)=4, \]
then write
\[ n(A\times A\times B) \]
\[ n(A\times A\times B)=n(A)\times n(A)\times n(B) \]
\[ =3\times3\times4 \]
\[ =36 \]
Hence,
\[ \boxed{36} \]