1. The problem statement, all variables and given/known data if vector d1=3i-2j+4k and d2=-5i+2j-k then what is (d1+d2).(d1x4d2)? (period between brackets indicates "dot" 2. Relevant equations mutiplication 3. The attempt at a solution so i got d1+d2=-2i+0j+3k and d1x4d2=-24i-68j-16k what do i do next? is the answer (-2)(-24)+(0)(-68)+3(-16)? thanks!