If P={4,5} , Q={7}, find the defined relations from P to Q

If P={1,3},Q={2,3,5} ,then find the number of relations from P to Q

If P=3Q = 7R, find P:Q:R.

Let P = {1,4,9} and Q={2,4,6}. Write the elements of (P nn Q) xx (P uu Q) . Also, find (P xx Q) nn (Q xx P)

Let P = {1, 4,9} and Q= {2,4,6}. Write the elements of (P nn Q)xx (P uu Q) . Also find (P xx Q) nn (Q xx P) .

If p=4 , q=-3, r=2 find the value of 4p^2+5q-12r

Let O be the origin. We define a relation between two points P and Q in a plane if O P=O Q . Show that the relation, so defined is an equivalence relation.

Let A={1,3,5,7} and B={p,q,r} .Let R be a relation define by R={(1,p),(3,r),(5,q),(7,p),(7,q)} , find the domain and range of R .

If p/q = 6/5 , then find the value of the ratio (5p-6q)/(3p+4q)

Find the number of relations which can be defined from P = {1,2,3} to Q = {x,y}

If P=(1,2,3,4,5,6,7) and Q=(2,5,8,9) , then find P cup Q .