If the set \( A \) has \( p \) elements, \( B \) has \( q \) elements, then the number of elemen....

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If the set \( A \) has \( p \) elements, \( B \) has \( q \) elements, then the
P
number of elements in \( A \times B \) is
W.
(1) \( p+q \)
(2) \( p+q+1 \)
(3) \( p q \)
(4) \( p^{2} \)


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