Discussion
| Column A | Column B | |
| x # (-y) | x # y |
| (A) | Column A is larger |
| (B) | ... |
| (C) | ... |
| (D) | ... |
| (E) | ... |
| (F) | ... |
The solution is
Posted: 06/02/2013 11:17
I need help on this one...
Posted: 06/02/2013 23:52
Ok
Posted: 06/06/2013 23:17
Petit, in defined function questions, where you see different symbols that define a function, it is useful to think of ƒ(..), which is what you normally see in typical math classes.
Hence, think of a#b as ƒ(a,b), which here is defined as -b^4. As you can see, a does not even play a role in the function.
Now, we have Column A, ƒ(x, (-y)), which is - (-y)^4 = -y^4.
In Column B, we have ƒ(x,y), which is -y^4.
They are equal.
Hence, think of a#b as ƒ(a,b), which here is defined as -b^4. As you can see, a does not even play a role in the function.
Now, we have Column A, ƒ(x, (-y)), which is - (-y)^4 = -y^4.
In Column B, we have ƒ(x,y), which is -y^4.
They are equal.