document.write( "Question 87603: If A and B are sets whose union is B, then it must be true that... \n" ); document.write( "
Algebra.Com's Answer #63519 by stanbon(75887)    ![]() You can put this solution on YOUR website! A is a subset of B \n" ); document.write( "----------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "  |