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Homework Statement
Let a and b be non-zero vectors in space. Determine comp a (a × b).
Homework Equations
comp a (b) = (a ⋅ b)/|a|
The Attempt at a Solution
[/B]
comp a (a × b) = a ⋅ (a × b)/|a| = (a × a) ⋅b/|a| = 0 ⋅ b/|a| = 0
Is this the answer? Or is there more to it?