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If matrix A=[1-1-1 1] and A^2=k A , then...

If matrix `A=[1-1-1 1]` and `A^2=k A ,` then write the value of `kdot`

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Knowledge Check

  • A variable plane at a distance of 1 unit from the origin cuts the coordinate axes at A,B and C satisfies the relation 1/x^2+1/y^2+1/z^2= k , then the value of k is :

    A
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    B
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  • If f(x) = {((logx)/(x-1), if x ne 1),(k, if x =1):} is continuous at x =1, then the value of k is

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    B
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    C
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