Class 12 Vector Algebra · Conceptual Answer1 Marksmagnitude
Class 12 Maths · Vector Algebra · Conceptual Answer #101
If a,b,c are mutually perpendicular unit vectors, find |2a+b+c|.
✅ Step-by-Step Solution
Final Answer: √6
- The squared norm is 4|a|²+|b|²+|c|²=6 because all mixed products vanish.
- √6
📋 CBSE Stepwise Marking Scheme
- [0.5 marks] The squared norm is 4|a|²+|b|²+|c|²=6 because all mixed products vanish.
- [0.5 marks] √6
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