Hi,
The answer is A) but I cant figure out why.... could anyone please explain? (I thought the answer was D) cause both a) and 2) look addition)
If ☉ denotes a mathematical operation, does
x☉y=y☉x for all x and y?
(1) For all x and y, x☉y = 2(x2 + y2).
(2) For all y, 0☉y = 2 y2
The answer is A) but I cant figure out why.... could anyone please explain? (I thought the answer was D) cause both a) and 2) look addition)
If ☉ denotes a mathematical operation, does
x☉y=y☉x for all x and y?
(1) For all x and y, x☉y = 2(x2 + y2).
(2) For all y, 0☉y = 2 y2
