Solve 6th sum nd plz tell how is any mapping done.like what is the rule for this mapping

Asked by lovemaan5500 | 1st Feb, 2019, 09:39: PM

Expert Answer:

{1234}
{2567}
→ mapping from A to B 
={(25), (36), (47)}
f is an injective mapping.
As for every element begin mathsize 16px style element of end style A there is an unique element begin mathsize 16px style element of end style B
We define a mapping g:Agiven by {(22)(25)(36)(47)}
g is not an injective mapping. As the element begin mathsize 16px style element of end style A is not uniquely mapped
Since (2, 2) and (2, 5) both belong to the mapping g, g is not injective.
Define a mapping B given by {(22)(53)(74)}
h is a mapping from B tA since the every ordered puts {257begin mathsize 16px style element of end style B to elements in {234begin mathsize 16px style element of end style A

Answered by Sneha shidid | 4th Feb, 2019, 02:08: PM