JEE Main 2026 Mathematics question
Let and . Then the square of the area of the triangle with adjacent sides determined by the vectors and is:
Answer: (C)
Solution
(2a+3b)×(a−b)=−2(a×b)−3(a×b)=−5(a×b). Here a×b=(0,12,−12), so |a×b|=12√2 and the
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