Question 28662
Determine all the values of x and y such that xy, x/y and x-y are all equal.
LET US TAKE THE FIRST 2 
XY=X/Y
Y^2=1
Y=1 OR -1
NOW LET US TRY THESE VALUE IN THE OTHER AND CHECK
XY=X-Y
CASE 1....Y=1
X=X-1....IMPOSSIBLE
CASE2...Y=-1
-X=X+1
-2X=1X=-1/2...SO THE POSSIBLE SOLUTION IS 
X=-1/2 AND Y=-1...CHECK...WE GET 
XY=-(1/2)*(-1)=1/2
X/Y=-(1/2)/(-1)=1/2
X-Y=-(1/2)-(-1)=1/2...OK...