Hello.
If X is not = -y, is x-y/x+y > 1?
1) x>0
2) y<0
The answer is E. However, I originally thought the answer would be B because 　x-y/x+y > 1　→　x-y> x+1 and when Y is Y<0, it's valid whether X is X<0 or X>0.
BUT, I had a second thought if x-y/x+y > 1　→　x-y> x+1 is possible..... (I am away from math for a long time....now I am not too sure if we can divide both sides in inequality expression )
Thanks,
R.
If X is not = -y, is x-y/x+y > 1?
1) x>0
2) y<0
The answer is E. However, I originally thought the answer would be B because 　x-y/x+y > 1　→　x-y> x+1 and when Y is Y<0, it's valid whether X is X<0 or X>0.
BUT, I had a second thought if x-y/x+y > 1　→　x-y> x+1 is possible..... (I am away from math for a long time....now I am not too sure if we can divide both sides in inequality expression )
Thanks,
R.
