Answer: f⁻¹∘g⁻¹.
- A f∘g
- B (f∘g)⁻¹
- C f⁻¹∘g⁻¹
- D g⁻¹∘f⁻¹
Correct answer: C. f⁻¹∘g⁻¹
Explanation: Undoing a composite reverses the order - like removing socks then shoes in the opposite order they were put on.
Concept context
Types of relations, equivalence classes, one-one and onto functions, composition, and invertible functions