document.write( "Question 376061: The cardinality The cardinality of the set A, n(A) = 50 and the cardinality of set B, n(B) = 50. These sets have 3 elements in common. \r
\n" ); document.write( "\n" ); document.write( "a) What is the cardinality of the set: AB?
\n" ); document.write( "b) What is the cardinality of the set: AB?
\n" ); document.write( "c) What is the cardinality of the set: [AB]A
\n" ); document.write( "d) What is the cardinality of the Cartesian product: A X B\r
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "

Algebra.Com's Answer #267530 by robertb(5830)\"\" \"About 
You can put this solution on YOUR website!
The cardinality of A intersection B = 3.
\n" ); document.write( "The cardinality of A U B is 50 + 50 - 3 = 97.
\n" ); document.write( "The cardinality of (A intersection B) U A = 50, or the cardinality of (A U B)intersection A = 50, whichever the case is (the symbols are not appearing on the screen!).
\n" ); document.write( "The cardinality of A x B = 50*50 = 2,500.
\n" ); document.write( "
\n" );