1. Tardigrade
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  4. If | 1& -1& x [0.3em] 1 x 1 [0.3em] x -1& 1 | has no inverse, then the real value of x is :

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Q. If $ \begin{vmatrix} 1& -1& x \\[0.3em] 1 & x & 1 \\[0.3em] x & -1& 1 \end{vmatrix}$ has no inverse, then the real value of x is :

Determinants

Solution:

Correct answer is (d) 1