Question

Let N be the set of natural numbers and A = (ab): a? - 3 62 = 28 aben) B = {(ab) a >5. a. E N) then n(An B) is equal to
6
2
1​

Answer 1

Answer:

Let R={(a,b):a,b∈N,a−b=3}

={(n+3,n):n∈N}

={(4,1),(5,2),(6,3).......}

Hence, option B is correct

Step-by-step explanation: