Let N be the universal set-i if A - x - x - N and x is odd find A -ii if B - x - x - N - x is divisible by 3 and 5 find B -

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Byju's Answer

Standard XI

Mathematics

Intersection

Let N be the ...

Question

Let N be the universal set.
(i) if A={ $x : x ϵ N$ and x is odd} find A'

(ii) if B={ $x : x ϵ N$ , x is divisible by 3 and 5 } find B'

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Solution

We have
(i) A'={ $x : x ϵ N$ and x is not odd} ={ $x : x ϵ N$ and x is even}

(ii) B'={ $x : x ϵ N$ , x is not divisible by 3 or x is not divisible by 5 }

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