Just wanted to say hi before I start my post!(adsbygoogle = window.adsbygoogle || []).push({});

As you may know there is a property of the absolute value that states; for [tex]a, b \in R[/tex];

[tex]|ab| = |a||b|[/tex]

Well, my friend asked me if I knew a proof for this... but I don't know...

How can we prove this statement/property? I know there is a proof for the triangle inequality but for this I really don't know but I'm curious.

I'd appreciate it if anyone could show me any kind of proof or send me some links etc. Thanks!

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Properties of the Absolute Value

**Physics Forums | Science Articles, Homework Help, Discussion**