Wednesday

September 17, 2014

September 17, 2014

Posted by **Anonymous** on Sunday, August 11, 2013 at 7:54am.

how can i prove this using contraposition?

- DISCRETE MATHS -
**Steve**, Sunday, August 11, 2013 at 6:07pmif both are odd, we can let

m = 2a+1

n = 2b+1

mn = (2a+1)(2b+1) = 4ab+2a+2b**+1**

so, mn is odd if m and n are both odd.

So, if mn is even, then m and n cannot both be odd.

**Answer this Question**

**Related Questions**

discrete math - prove that if n is an integer and 3n+2 is even, then n is even ...

Discrete Math - 1. Assume that n is a positive integer. Use the proof by ...

discrete math - Prove by contradiction that for any even integer a and any odd ...

Algebra - The sum of two consecutive even integers is 118. A. Define a variable ...

odd and even functions - Using f is odd if f(-x) = -f(x) or even if f(-x) = f(x...

algebra1 - tripling the greater of two consecutive even integers gives the same ...

algebra concept 2 - 2. Tripling the greater of two consecutive even integers ...

english - selection of hiking shoes should be your first concern.even a one day ...

math - consecutive even integers can be represented by x,x+2,x+4 and so on. ...

Math - Auppose f is even but g is an arbitrary function (possibly neither even ...