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Multivariable Calculus

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Length of Cross Product

MVCALC-EPHWHK

Let ${\bf v}=\langle 4, -1, 2 \rangle $, and let ${\bf w}=\langle 3, 2, -4 \rangle $.

What is the length of the vector ${\bf v} \times {\bf w}$?

A

$\sqrt{2}$

B

$\sqrt{46}$

C

$\sqrt{33}$

D

$5\sqrt{2}$

E

$11\sqrt{5}$