Please answer this question showing ALL the steps Suppose th

Please answer this question showing ALL the steps.

Suppose that u rightarrow .(v rightarrow Times w rightarrow) = 3 u rightarrow. (w rightarrow Times v rightarrow).

Solution

given

u.(vxw) = 3

we know that

vxw = -wxv

means

u.(wxv) = -(u.(vxw))

u.(wxv) = -3