Mathematics · Vector Algebra
If a = i + j, b = 2j - k are two vectors such that r × a = b × a and r × b = a × b, then the unit vector in the direction of r is
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 11√3(i + j - k)
- 21√3(i + j + k)
- 31√11(i - 3j + k)
- 41√11(i + 3j - k)✓
Correct answer
1√11(i + 3j - k)
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