Discussion
The operation * is defined for all non-zero x and y by the equation x * y = x/y. Then the expression (x * y) * z is equal to
| (A) | z/(xy) |
| (B) | ... |
| (C) | ... |
| (D) | ... |
| (E) | ... |
| (F) | ... |
The solution is
Posted: 01/05/2013 00:42
Shouldn't the answer be (d)? Since before you can switch a fraction from division to multiplication you should reciprocate it first?
Posted: 01/25/2013 22:31
I think you are right. I'm pretty positive.
Posted: 01/25/2013 23:26
Sorry guys, the answer is not D. (x/y)/z = x/y * 1/z = x/yz