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Summation by Sigma Method

If A=a, b and...

Question

If A = { a, b } and B = { 1, 2 } be two sets , then the number of relations that can be formed from the set A to set B is

A

2²

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B

2⁴

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C

2⁸

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D

2⁶

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Solution

The correct option is B
2⁴

number of relation = $2^{4}$

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Similar questions

A

B

n (A) = 20

n (A \cap B) = 4

n (A \cup B) = 42

Q. Let the number of elements of the sets

A

B

p

q

respectively. Then the number of relations from the set

A

B

Q. Let the number of elements of the sets

A

B

p

q

respectively. Then, the number of relations from the set

A

B

A = {a, b, c}

B = {1, 2}

. Consider a relation

R

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A

B

R

is equal to set

A = {5, 6, 7}, B = {1, 2, 3, 4}

, then number of elements in set

(A - B) \times B

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