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For a = i + 2j + 3k and b = 4i + 5j + 6k, find a × b.
Original Khojo Papers practice question — not from a past board paper.
Answer
−3i + 6j − 3k
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Expanding the determinant gives i(12 − 15) − j(6 − 12) + k(5 − 8) = −3i + 6j − 3k.
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