Consider the sets of values.

A = {x: - infinity < x < 3}

B = {x:3<x< infinity}

C = {x:x=-3,3}

Find = ( A intersect b ) union C.

Would this be somthing like A = numbers between -3 and negative infinity

b = numbers between 3 and positive infinity

and c = numbers between -3 and 3?

So a intersect b is any number between -3 and 3 and c union ( a intersect b ) is again between -3 and 3?