MHT CET 2025 Mathematics question
Let and be vectors of magnitude 2, 3 and 4 respectively. If is perpendicular to , is perpendicular to and is perpendicular to , then the magnitude of is
Answer: (C)
Solution
Let , , . The perpendicularity conditions give , , . Adding the first two and subtracting the third: , so (the three vectors are mutually
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