JEE MATHEMATICS MCQ: RELATIONS

1 Easy

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Understanding +4 | -1

Let

X

be a non-empty set and

P(X)

be the set of all subsets of

X

. For

A, B \in P(X), A R B

if and only if

A \cap B=\phi

then the relation

View answer and explanation

Correct option: B

R

is symmetric

Option B (24) is correct because the number of bijections from A to B when n(A) = n(B) = 4 is 4! = 24.

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\mathrm{Z}

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\mathrm{R}

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R=\{(x, y) \in W \times W \mid

x

y

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S

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S

X

R

X

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R

R

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R