Question

If a function is invertible, then the function must be

• A. One-to-One Function
• B. Many - to - One function
• C. On to function
• D. Bijection

Answer 1

Answer: (A), (C), (D)

The correct options are
A One-to-One Function
C On to function
D Bijection

In functions chapter we have studied that the inverse of a function exists only if the function is a Bijection. A Bijection is nothing but a one-to-one and onto function.