If {1/2(A-A'+1)}^-1=2/lambda[(lambda-13...

If `{1/2(A-A'+1)}^-1=2/lambda[(lambda-13,-lambda/3,lambda/3),(-17,10,-1),(7,-11,5)]` for `A=[(-2,3,4),(5,-4,-3),(7,2,9)]`, then `lambda` is

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The correct Answer is:

`lambda=39`

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