Problem 3E

Problem 3E

By inspection (as discussed prior to Example 1), find an inverse of 4 modulo 9.

Step-by-Step Solution:

Solution

In this question we have to find inverse of 4 modulo 9 .

Step 1

As prior to example 1

=>

=>

=>

Therefore inverse of 4 modulo 9 is 7 .

Step 2 of 1