Question

prove that:
A-(A-B)=A∩B

Answer 1

Answer:

A={1,2,3} & B={234};

A-(A-B)= {1,2,3}-({1,2,3}-{2,3,4}) ={1,2,3}-({1})

= {1,2,3}-{1}

={2,3}=> AnB={2,3}

HENCE PROVED

Step-by-step explanation:

A - B means "elements of A which are not the elements of B" .

HENCE in (A-B)=> {1,2,3} - {2,3,4}

=>{1} Is the element which is not in B

And same in the next step

HOPE IT HELPFUL