Asked by Joy
I am lost, need to know how to do these types of problems.
How many one-to-one correspondences are there between the sets {a,b,c,d}and{1,2,3,4}if in each correspondence
A. a and c must correspond to even numbers
B. b must correspond to 3?
C. b must correspond to 3 and d to 4?
How many one-to-one correspondences are there between the sets {a,b,c,d}and{1,2,3,4}if in each correspondence
A. a and c must correspond to even numbers
B. b must correspond to 3?
C. b must correspond to 3 and d to 4?