Find the Triple Scalar Product U · (V × W)for

question 31

Multiple Choice

Find the triple scalar product u · (v × w) for the vectors
$\mathbf { u } = ( - 9 ) \mathbf { i } + ( 1 ) \mathbf { j } + ( - 7 ) \mathbf { k } , \mathbf { v } = ( 7 ) \mathbf { i } + ( - 1 ) \mathbf { j } + ( - 6 ) \mathbf { k } , w = ( - 7 ) \mathbf { i } + ( 4 ) \mathbf { j } + ( \# \# k$ ) K