Question: Show that if u, v, w, and r are any vectors, then a. u x (v Xw) + vX (w Xu) + w x (u

Show that if u, v, w, and r are any vectors, thena. u x (v Xw) + vX (w Xu) + w x

a. u x (v Xw) + vX (w Xu) + w x (u X v) = 0 + (u v k)k b. ux v = (u.v i)i + (u v j)j c. (u X v) (w X r) = u. W u.r V. W V r

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