-x- represent number of elements in region X- Now the following conditions are given -U-14- -A-BC-12- -A- B-9 and -A- B-7- where A and B are two subsets of the universal set U and AC represents complement of set A- then-

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Standard XII

Mathematics

Axiomatic Approach

|x| represent...

Question

$| x |$ represent number of elements in region X. Now the following conditions are given
$| U | = 14$ , $| (A - B)^{C} | = 12$ , $| A \cup B | = 9$ and $| A Δ B | = 7$ , where A and B are two subsets of the universal set U and $A^{C}$ represents complement of set A, then?

| A | = 2

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| B | = 5

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| A | = 4

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| B | = 7

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Solution

The correct options are
C $| A | = 4$
D $| B | = 7$

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|x| represent number of elements in region X. Now the following conditions are given|U|=14, |(A−B)C|=12, |A∪B|=9 and |AΔB|=7, where A and B are two subsets of the universal set U and AC represents complement of set A, then?

The correct options are C |A|=4 D |B|=7

$| x |$ represent number of elements in region X. Now the following conditions are given
$| U | = 14$ , $| (A - B)^{C} | = 12$ , $| A \cup B | = 9$ and $| A Δ B | = 7$ , where A and B are two subsets of the universal set U and $A^{C}$ represents complement of set A, then?

The correct options are
C $| A | = 4$
D $| B | = 7$