(adsbygoogle = window.adsbygoogle || []).push({}); 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!

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# Homework Help: Simple mutiplication vector problem

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