If A -1-2 and B -3-4- then A - B -A- B - AB- 1-2-3-4C- D- A - B

The correct options are A B∩ A C {}Given nbsp;A={1, 2} and B={3, 4}. A∩ B= {}, as A and B have no elements in common. Also, the commutative property of inters ...

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Standard IX

Mathematics

Commutative Property

If A =1,2 and...

Question

If $A = {1, 2}$ and $B = {3, 4},$ then $A \cap B$ = ___.

B \cap A

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{1, 2, 3, 4}

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{}

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A \cup B

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Solution

The correct options are
A $B \cap A$
C ${}$
Given $A = {1, 2}$ and $B = {3, 4} .$
$A \cap B = {},$ as A and B have no elements in common.
Also, the commutative property of intersection of sets says that
$A \cap B = B \cap A .$

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If A={1,2} and B={3,4}, then A∩B = ___.

The correct options are A B∩A C {}Given A={1,2} and B={3,4}. A∩B={}, as A and B have no elements in common. Also, the commutative property of intersection of sets says that A∩B=B∩A.

If $A = {1, 2}$ and $B = {3, 4},$ then $A \cap B$ = ___.

The correct options are
A $B \cap A$
C ${}$
Given $A = {1, 2}$ and $B = {3, 4} .$
$A \cap B = {},$ as A and B have no elements in common.
Also, the commutative property of intersection of sets says that
$A \cap B = B \cap A .$