MHT CET 2024 Mathematics question

Mathematics Vector Algebra MHT CET 2024

If the vectors and are mutually perpendicular then (m, n) is

(A)(3,-2)
(B)(-2,3)
(C)(2,-3)
(D)(-3,2)Correct

Answer: (D)

Solution

Let . Note , so already. Now : ... (1), and : ... (2). From

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Question ID VK-092818