If two vectors are given as D₁ = 3i - 2j + 4k and D₂ = -5i + 3j - k, find D₁ × 4D₂.
University of Ilorin PHY101 2026-exam past question
- -40i - 68j - 4k
- -40i + 68j + 4k
- 40i - 68j - 4k
- -40i - 68j + 4k
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