Asked by hart

Given that a = 5i +2j - k and b = I - 3j + k. Find (a + b) x (a + b).
Answered by Damon
a+b = 6 i -1 j + 0 k
trick question or typo
cross product = |A||A| sin theta
theta = 0
so cross product = 0
Answered by Steve
correct. You didn't even have to find a+b.
Answered by Aristo
Given that a = 5i +2j - k and b = I - 3j + k. Find (a + b) x (a + b).
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