Problem of the Week 9-27-16

Kelsey shows some of the proof of the BAC - CAB vector identity.

[alexobrien]

my question is how did she write A X ( B X C) so high onto the black board

[uRization]

Thanks so much i was looking for a non Indian video and surprisingly i found you!

[spaceengineering]

she is really annoying and irritating to listen to and to watch. get another presenter