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Q.

If A is the set of all positive integers and B is the set of all negative integers, then A∪B is

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a

the set of all integers

b

the set of all integers except zero

c

{0}

d

none of these

answer is C.

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Detailed Solution

A={set of all +ve integers}={1,2,3,⋯}

B={set of all −ve integers}={−1,−2,−3,⋯}

A∪B is the set of all integers except zero

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