Question

If A = { x : x ∈ N and 3<x<7 } and B = { x : x ∈ W and ≤ 4 } , find the value of A - B​

Answer 1

Answer:

A={x:x∈N,3<x≤6}

∴A={4,5,6}

B={x:x∈W,x<4}

∴B={0,1,2,3} [x∈W i.e., Whole Number]

A∪B= contains all the elements of A and B But elements are not repeated.

∴A∪B={0,1,2,3,4,5,6}

Answer 2

Answer:

tell your answers properly please