Question

Let A = {a, e, i, o, u} and B = {a, i, u}. Show that A ∪ B = A.

Answer 1

AUB is {a,e,i,o,u}......AUB is equa to A because B is a proper subset or subset of A

Answer 2

My friend,

we have ,

A={a,e,i,o,u} &B={a,i,u}

As, we know for union which is denoted by "U "

The common elements being taken only once.

There for,
A U B ={a,e,i,o,u,} i.e, A