Q3 of 162 Page 1

Let A = {x : xN, x is a multiple of 3} and B = {x : xN and x is a multiple of 5}. Write .

Here, A={X:XϵN,X is a multiple of 3} and


B={X:XϵN,X is a multiple of 5}.


A⋂B={X:XϵN,X is a multiple of 3} and{X:XϵN,X is a multiple of 5}


={X:XϵN,X is a multiple of 3 and 5}


={X:XϵN,X is a multiple of 3*5=15}


={X:XϵN,X is a multiple of 15}


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