Question

Which compound inequality has no solution? x ≤ –2 and 2x ≥ 6 x ≤ –1 and 5x ≤ 5 x ≤ –1 and 3x ≥ –3 x ≤ –2 and 4x ≤ –8

Answer 1

x <= -2  and 2x >= 6    is the smae as

x<= -2 Nd x >+ 3

Now x cannot satisfy both inequalities   so the first one has no solution