2026 IGCSE 0580 February/March P22 Q13

\(\mathcal{E}=\{x:x\text{ is an integer where}\hspace{0.5em}40<x<50\}\)

\(P=\{x:x\text{ is a square number}\hspace{0.15em}\}\)

\(Q=\{x:x\text{ is an odd number}\hspace{0.15em}\}\)

\(R=\{x:x\text{ is a multiple of}\hspace{0.5em}3\}\)

1. Use set notation to complete the statement.
   \(P\cap R=\) ..........[1]
2. Find \(\mathrm{n}(P\cap Q\cap R)^{\prime}\).[1]