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Questions  

 Let N be the set of non-negative integers, I the set of  integers, Np the set of non-positive integers, E the set of 

 even integers and P the set of prime numbers. Then 

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By Expert Faculty of Sri Chaitanya
a
I−N=Np
b
N∩Np=ϕ
c
E∩P=ϕ
d
NΔNp=I−{0}

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detailed solution

Correct option is D

N= 0,1,2,3,.......    I = ......,-2,-1,0,1,2,......    Np=........-2,-1,0    E  =2,4,6,........     P = 2,3,5,........            NΔNp=N−Np∪Np−N={1,2,…}∪{…−2,−1}=I−{0}


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