Mathematics · Vector Algebra
If vector a = 2î + 2ĵ + 3k̂, vector b = -î + 2ĵ + k̂ and vector c = 3î + ĵ are vectors such that (a + λb) is perpendicular to vector c, then the value of λ is:
- 1-8✓
- 28
- 3-6
- 46
Correct answer
-8
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