Wednesday

August 27, 2014

August 27, 2014

Posted by **jessica** on Monday, July 20, 2009 at 12:37am.

If both x and y are integers and x > y,

then x^2 > y^2.

- math -
**Reiny**, Monday, July 20, 2009 at 7:34amnot true

counterexample

5 > -6 ----> true

then 5^2 > (-6)^2 ??

25 > 36 ----> False

the statement is true only for positive values of x and y, so

it is "sometimes true"

**Related Questions**

mathematics - Determine whether the statement is true, false, or sometimes true...

Math - Determine whether the statement is true, false, or sometimes true. ...

calculus - Determine whether the statement is true or false. If it is true, ...

mATH ANSWERS - 1) If the odds in favor of an event A are 3 to 1, what is the ...

Algebra - A positive integer minus a positive integer is always positive. This ...

math - Determine whether the statement is always true, sometimes true, or never ...

calculus - determine whether the statement is true or false. If it is true, ...

Algebra II - In an induction proof of the statement 4+7+10+...+(3n-1)=n(3n+5)/2 ...

math: real numbers - Determine whether the following statement is true or fase. ...

Math 156 - Decide whether the following statement is true or false and justify ...