MHT CET 2023 Mathematics question

Mathematics Vector Algebra MHT CET 2023

If are three vectors, and , then the value of is

(A)2Correct
(B)
(C)1
(D)4

Answer: (A)

Solution

From we get , so (acute angle between and ) and . Now , so \bar\bar\bar$

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Question ID VK-097455