Question

How do i solve this -given that p and q are sets of real numbers such that p=(x:0 is lesser than or equal to x is lesser than or equal to 3)and q=(x:3 is lesser than x is lesser than 2),find p union q

Answer 1

pUq = (0 <= x <= 3) U (3 < x < 2) = [0,3] U Ø = [0,3]
There is no number greater than 3 and less than 2