If the following matrix is singular, then what is the value of ?
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0 marksMathematicsMatrices, determinants and linear systemsSingular matrices and invertibilityModerateabout 2 min
JNU SIS 2021 Question 65: Matrices, determinants and linear systems
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If the following matrix is singular, then what is the value of α? [1 2 1; 2 0 α; 1 α 1] (A) 0 (B) 1 (C) 2 (D) 3
Also written as: If the following matrix is singular, then what is the value of alpha? [1 2 1; 2 0 alpha; 1 alpha 1]
Matrices, determinants and linear systems has come up 102 times in 7 exams since 2006.
What this question tests
This question is on Singular matrices and invertibility, part of Matrices, determinants and linear systems in Mathematics.
When a matrix has an inverse and what singularity means.
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