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The value of |1 2 3-4 3 6 2-7 9| is a. ...

The value of `|1 2 3-4 3 6 2-7 9|` is a. 213 b.-231 c.231 d. 39

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Knowledge Check

  • The half - life of ._6C^(14) , if its lamda is 2.31 xx10^(-4) " year"^(-1) is

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    A
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    B
    A
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    C
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  • The vertices of a triangle ABC are A (2,3,1) , B(-2, 2,0), and C(0,1,-1). What is the cosine of angle ABC ?

    A
    `(1)/(sqrt(3))`
    B
    `(1)/(sqrt(2)) `
    C
    `(2)/(sqrt(6))`
    D
    None of these
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