Solution Found!
Suppose that g is a function from A to B and f is a
Chapter 1, Problem 33E(choose chapter or problem)
QUESTION:
Problem 33E
Suppose that g is a function from A to B and f is a function from B to C.
a) Show that if both f and g are one-to-one functions, then f o g is also one-to-one.
b) Show that if both f and g arc onto functions, then f o g is also onto.
Questions & Answers
QUESTION:
Problem 33E
Suppose that g is a function from A to B and f is a function from B to C.
a) Show that if both f and g are one-to-one functions, then f o g is also one-to-one.
b) Show that if both f and g arc onto functions, then f o g is also onto.
ANSWER:
Solution:
Step 1:
Suppose that g is a function from A to B and f is a function from B to C.