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JEE MATHEMATICS MCQ: PERMUTATIONS

1 Easy

1 of 1

Application +4 | -1

Let

A

be a set containing

n

elements. The number of ways of choosing two subsets

P

and

Q

of

A

such that

P \cap Q=\phi

is

View answer and explanation

Correct option: B

3^n

Option B (

3^n

) is correct because each element has three possibilities: belonging to P, belonging to Q, or belonging to neither.

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