Express `A={(a ,b):2a+b=5,a ,b in W}` as the set ordered pairs.

Express A={(a ,b):a+b=4,a ,b in W} as the set ordered pairs.

Express {(x, y) x^2 + y^2 =100 , where x, y in w } as a set of ordered pairs.

Express ((x,y) such that x^2+y^2=25 where, x,y in W} as a set of ordered paires.

Express { (x,y):x^(2)+y^(2)=25 where x,y in W } as a set of ordered pairs.

If A= {2,4,6,9} and B= {4,6,18, 27, 54}, a in A, b in B , find the set of ordered pairs such that 'a' is a factor of 'b' and a lt b

Let R be a relation is multiple of from the set A={1,2,3} to B={4,10,15}. Then, the set of ordered pairs corresponding to R are :

Let A-{1,2,3} and R={(a,b):|a^(2)-b^(2)|<=5,a,b,quad in A} Then write R as set of ordered pairs.