The universal set $\mathcal{E}$ is displayed. Sets J and K overlap, and the shaded part covers every point in circle J or circle K, including the common region.
(main)[1]
Use set notation to describe the region that is shaded.
Worked solution & mark scheme
This 1-mark question has a full step-by-step worked solution and mark scheme. One marking point: “$J\cup K$” …