If x>y>0, which of the following must be true:
I. x^2>y^2
II. x^3 > y^3
III. x<y
Options:
A) I and II
B) II only
C) III only
D) II and III
E) I, II and III
I and IIssuming x and y to be integers   X=3,Y=2   X^2=3^2=9   Y^2=2^2=4   So I is true   Now lets look at option III because if option 3 is true E is the answer or else I and II   I and IIs per question X&gt;Y&gt;0 Hence |X| &gt;Y   So OI and II=I and II
<result>A</result>
If x>y>0, which of the following must be true:
I. x^2>y^2
II. x^3 > y^3
III. x<y