Question

Let X={a, e, i, o, u} and Y={a, g, o, f}.verify that n(A-B) =n(A) -n(A intersection B)​

Answer 1

Answer:

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Answer 2

Answer:

A={a,e,I,o,u}

and

B={a,g,I,f}

so,

n(A - B)={e,i,u}

so,

n(A - B)=3.

so,

A-(A n B) = {e , i , u}

n[A-(A n B)] = 3

hence ,we concluded that ,

n (A - B) =n(A) -n (A intersection B)