MCQEasyJEE Main 2024 · 27 January, Shift 1Dot Product

Mathematics Question from JEE Main 2024 · 27 January, Shift 1

Least positive integral value of α\alpha, for which the angle between vectors αi2j+2k\alpha i-2j+2k and αi+2αj2k\alpha i+2\alpha j-2k is acute, is:

  • A

    55

  • B

    66

  • C

    77

  • D

    88

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