The vector projection of PQ on AB , where P (-2,1,3), Q (3,2,5), A (4,-3,5) and B (7,-5,1)

MHT CET 2022 Mathematics question

The vector projection of on , where and

Answer: (A)

. For the options all contain the direction , which requires (a sign in the printed B is lost): , . Then

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Question ID VK-094337