Functions Question 342
Question: If for two functions g and f, gof is both injective and surjective, then which of the following is true
[Kurukshetra CEE 1998]
Options:
A) g and f should be injective and surjective
B) g should be injective and surjective
C) f should be injective and surjective
D) None of them may be surjective and injective
Show Answer
Answer:
Correct Answer: A
Solution:
It is evident.
 BETA
  BETA 
             
             
           
           
           
          