Question

Which of the following has no solution? {x x S 1) or (X X 2 1 X X s 1) and (x (x > 1) {X X < 1) and {XX > 1

Answer 1

Two sets of data set has solution if they intersects at some point.

For example, for the first option:

They intersects on x=1

For the second option happens the same scenario, they intersects on x=1.

But for the third option, neither of the sets can take x=1, so they DO NOT intersect, therefore it has no solution.