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For vectors a and b we know that |a| = 3, |b| Compute (4a+2b)(4a-4b) (Hint: Distribute) = : 2, and the angle between the

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For vectors a and b we know that |a| = 3, |b| Compute (4a+2b)(4a-4b) (Hint: Distribute) = : 2, and the angle between the vectors is 60 degrees.

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