Saved Bookmarks
| 1. |
The identity element for the binary operation `**` defined on Q - {0} as `a ** b=(ab)/(2), AA a, b in Q - {0}` isA. 1B. 0C. 2D. None of these |
|
Answer» Correct Answer - C Given that, `a ** b = (ab)/(2), AA a,b in Q - {0}.` Let e be the identity element for `**`. ` :. A ** e = (ae)/(2)` `implies a=(ae)/(2)implies e=2` |
|