Resultant gate and its Boolean expression for a given combination of gates

The same question, asked 2 times: 9 May 2023 S2, 16 Apr 2026 S1. Every wording below, oldest first.

Try each one first, then open its answer.

Question 1
9 May 2023 S2
39 $The resultant gate and its Boolean expression in the given circuit is$
Tap an option to check your answer.
Question 2
16 Apr 2026 S1
149 $The resultant gate and its Boolean expression in the given circuit is$
Tap an option to check your answer.