回答:
#6,14,-11#
说明:
由于交叉产品是分布式的,您可以“扩展”它
#( - hati + 2hatj + 2hatk)xx(4hati + 3hatj + 6hatk)#
#=(-hati)xx(4hati)+( - hati)xx(3hatj)+( - hati)xx(6hatk)#
#+(2hatj)xx(4hati)+(2hatj)xx(3hatj)+(2hatj)xx(6hatk)#
#+(2hatk)xx(4hati)+(2hatk)xx(3hatj)+(2hatk)xx(6hatk)#
#= 0 - 3hatk + 6hatj#
# - 8hatk + 0 + 12hati#
#+ 8hatj - 6hati + 0#
#= 6hati + 14hatj - 11hatk#