What does the ^ notation mean in vector calculus?

[Lucy Yeats]

Homework Statement

I'm having problems with question 12b of the attached past exam paper, because I have no idea what the notation ^ means in vector calculus. If someone could explain that to me, I'd be really grateful. :-)

Homework Equations

The Attempt at a Solution

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[I like Serena]

Hi Lucy Yeats!

$\wedge$ is a synonym for the cross product for vectors $\times$.

 

[Lucy Yeats]

Great, thanks so much!

 

[I like Serena]

Great, thanks so much!

And?
Did you solve it?

 

[Lucy Yeats]

Yes, thanks! :-)