Given X x epsilon Rx Solutionto start with lets write the r

Solution

to start with let\'s write the result set

X = { ....... -3.. -2.. -1.. 0.. 1.. 2.. 3.. 4.. 5.. 6........ 6.999999999 (but not 7)}

Y = { -2.. -1.. 0.. 1.. 2.. 3.. 4.. 5.. 6.. 7.. 8.. ......}

I have used double dots(..) instead of comma(,) because X and Y both are Real Number.

if we try to make X U Y, that is in simple terms, all those Real numbers which X OR Y is having.

X U Y = { ....-2,-1..0..1..2..3..4..5..6..7..8..9......}

X U Y = {X U Y R | - < X U Y < +}

X Intersection Y = { -2..-1..0..1..2..3..4..5..6..6.9999999999 (but not 7)}

X intersection Y = { X intersection Y   R | -2 <= X intersection Y < 7}