Discussion Forum
Que. | The set {1, 2, 3, 5, 7, 8, 9} under multiplication modulo 10 is not a group. Given below are four plausible reasons. Which one of them is false? |
a. | It is not closed |
b. | 2 does not have an inverse |
c. | 3 does not have an inverse |
d. | 8 does not have an inverse |
Answer:3 does not have an inverse |