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Find the value of: (hat i times hat j).h...

Find the value of: `(hat i times hat j).hat k + hat i.hat j`

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Knowledge Check

  • The angle between the vectors (hat i + hat j + hat k) and ( hat i - hat j -hat k) is

    A
    `sin^(-1)((sqrt(8))/3)`
    B
    `sin^(-1)(1/3)+(pi)/3`
    C
    `cos^(-1)((sqrt(8))/3)`
    D
    `cos^(-1)sqrt(8/3)`

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