Open Question: If d1 = 9i - 8j + 1k and d2 = 9i - 9j + 10k, then what is (d1 + d2) · (d1 × 4d2)?
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.... Member since:May 26, 2008Total points:2,040 (Level 3)I'm doing vectors in physics and I don't quite understand if someone could explain how to go about solving this problem it would help a great deal.
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