Mathematics · Vector Algebra
Let a̅ = 4i̅ + 3j̅ and b̅ be two perpendicular vectors in the XOY-plane. A vector in the same plane having projections 1 and 2 respectively on a̅ and b̅ is:
- 1i̅ + 2j̅
- 22i̅ + j̅
- 3i̅ - 2j̅
- 42i̅ - j̅✓
Correct answer
2i̅ - j̅
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