Question

Let A= { a,b,c} and B= { 1,2} then the number of relations from A into B are

​

Answer 1

 2.2, 8 Let A = { x, y, z} and B = {1, 2}. Find the number of relations from A to B. Given A = {x, y, z} & B = { 1, ..

Answer 2

It is given that A={x,y,z} and B={1,2}

∴ A×B={(x,1),(x,2),(y,1),(y,2),(z,1),(z,2)}

Since n(A×B)=6  

The number of subsets of A×B is 2  

6

.