# a problem!

• Nov 16th 2009, 04:22 PM
ntfabolous
a problem!
I need help with this question for my upcoming homework.

Any help will be appreciated.

Show that

$\bigtriangledown\cdot(\vec{v}\times\vec{w})=\vec{w }\cdot(\bigtriangledown\times\vec{v})-\vec{v}\cdot(\bigtriangledown\times\vec{w})
$

Thanks!
• Nov 16th 2009, 04:25 PM
Drexel28
Quote:

Originally Posted by ntfabolous
I need help with this question for my upcoming homework.

Any help will be appreciated.

Show that

$\bigtriangledown\cdot(\vec{v}\times\vec{w})=\vec{w }\cdot(\bigtriangledown\times\vec{v})-\vec{v}\cdot(\bigtriangledown\times\vec{w})
$

Thanks!

What have you tried?

P.S. \nabla $\nabla$...that'll save you some writing.