Hello everyone, i'm looking at this proof and its making sence until the very last part, and it doens't friggin' work...the terms don't match up... Also is the notation I used correct in the proof, like does there have to be any vector notation I don't have or do you see anyhting you don't like? I'm proving the "The Vector triple product"(adsbygoogle = window.adsbygoogle || []).push({});

Here is my proof:

Proof

Look at the 2nd part of ax(bxc) -----> a1b1c3 - a2b22c3 + a2b3c2

then look at the last part (c.ad)b - (b.a)c ---> a1b3c1 - a1b1c3 + a2b3c2 - a2b2c3

You see only 1 term isn't match up!! the a1b1c3 not equal to a1b3c1 whats going on? Thanks

**Physics Forums - The Fusion of Science and Community**

# How is this proof valid? ax(bxc) = (c.a)b-(b.a)c

Know someone interested in this topic? Share a link to this question via email,
Google+,
Twitter, or
Facebook

Have something to add?

- Similar discussions for: How is this proof valid? ax(bxc) = (c.a)b-(b.a)c

Loading...

**Physics Forums - The Fusion of Science and Community**