If A= {a,b} B={p,q} then how many relation are there from set A to set B?

A = {1, 2, 3, 4, 5}, B = {1, 3, 4} and the relation R from set A to set B where (x, y) in R implies x > y. Find the ordered pairs of R^(-1)

Let R be a relation from set A do a set B, then_____

Let A = {1,2,3,4} and B = {7,8,9} , then which of the following relations is a mapping or not from set A to set B ? R_3 = {(1,8),(2,9),(3,8),(4,8)}

Let A = {1,2,3,4} and B = {7,8,9} , then which of the following relations is a mapping or not from set A to set B ? R_1 ={(1,7),(2,8),(1,8),(4,9)}

Let A = {1,2,3,4} and B = {7,8,9} , then which of the following relations is a mapping or not from set A to set B ? R_2 = {(1,7),(2,7),(3,7),(4,7)}

Let A = {1,2,3,4} and B = {7,8,9} , then which of the following relations is a mapping or not from set A to set B ? R_4 = {(1,7),(2,8),(3,7),(4,8)}

Let A and B be two sets containing respectively m and n distinct elements. Then number of different relations can be defined from set A to set B is ___

Find all the relations from the set A = {1,2} to the set B = {3}.

Set A has m distinct elements and set B has n distinct elements. Then how many different mappings from set A to set B can be formed?

If A is set of different triangles in the plane and B is set of all positive real numbers. A relation R is defined from set A to set B such that every element of set A is associated with some number in set B which is measure of area of triangle. Is this relation as function?