The value of x for which the matrix ∆ = \left[\begin{array}{ccc}x + \lambda & x & x \ x & x + \lambda & x \ x & x & x + \lambda \ ]\end{array}is singular is

Correct Answer is : x = -(λ/3)

AAI ATC Junior Executive 26 Dec 2015 Shift 1 Paper

Question : 101 of 120

Marks: +1, -0

The value of x for which the matrix

∆ = {[\table x + λ , x , x ; x , x + λ , x ; x , x , x + λ ; ]}

is singular is

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