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in Applications of Matrices and Determinants by (48.7k points)

If the rank of the matrix \(\begin{bmatrix} 1 &0&-1 \\[0.3em] 2&5&λ\\0&0 &7 \\[0.3em] \end{bmatrix}\) is 3, then the value of λ is ...

(a) 1 

(b) 0 

(c) 4 

(d) any real number

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1 Answer

+1 vote
by (49.4k points)

(d) any real number

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