Question

What is B, if A∪B = { a, b, c, d, e, f, g, h, i, r, s, t }, A−B = { c, d, e, i, r, s, t }, and A ∩ B = { f, g }?

Answer 1

Answer:

B {a,b,h}( it is because A-B mean the at of A substrates by B}

Answer 2

Answer:

B=(a,b,h,f,g)

Step-by-step explanation:

AUB=(a,b,c,d,e,f,g,h,I,r,s,t)

A-B MEANS ALL THE LEMENTS BWLONGS TO B IS REMOVED FROM.THE SET A IN THE SENSE A -A INTERSECTION B =(c,d,e,I,r,s,t)

so A =(c,d,e,fg,r,s,t)

so from these by removing all the elements that belongs to setA from A U B so we get the set B and add the A intersection B

= (a,b,h,f,g)