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Introduction to Relations (XI) on Sets
Question
If A = {(1, 2)}, B = {(3, 4)}, then
A
×
B
×
ϕ
=
Easy
A
ϕ
B
A
C
B
D
{1, 3}
Solution
B
×
ϕ
=
ϕ
⇒
A
×
B
×
ϕ
=
ϕ
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