Saved Bookmarks
| 1. |
Let * be a binary operation on the set Q of rational numbers defined by a*b = a-b for all all a,b ϵ Q , then the value of (-4 * 5) * 7 is |
|
Answer» Let * be a binary operation on the set Q of rational numbers defined by a*b = a-b for all all a,b ϵ Q , then the value of (-4 * 5) * 7 is |
|