$A \subseteq B$ এবং $C \subseteq D$ হলে —

Question

Accepted Answer

$A 	imes C \subseteq B 	imes D$

Answer

$A 	imes C 
ot\subseteq B 	imes D$

Answer

$A 	imes C = B 	imes D$

Answer

$A \cap C = B \cap D$

A⊆BA \subseteq BA⊆B এবং C⊆DC \subseteq DC⊆D হলে —