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Math Chapter Wise question with answer

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Question #46,963
Math Chapter Wise Operations On Vectors English MCQ UP PCS (Pre) 2000

Q.If (((()))) (((()))) (((()))) ˆ ˆ ˆ ˆ ˆ ˆ i i a j j a k k a m.a × × + × × + × × = × × + × × + × × = × × + × × + × × = × × + × × + × × = the m is equal to:

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